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Quizzes > English & Grammar

Noun Clause Test: WH Questions with Answers

Quick quiz to check noun clause examples with answers. Instant results.

Editorial: Review CompletedCreated By: Angela ParkUpdated Aug 23, 2025
Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper art illustration for a noun clause skills quiz on a sky blue background.

This quiz helps you practice noun clauses in WH questions and see how they work in clear, everyday sentences. Answer quick items with instant feedback, then build skills with the wh questions quiz or try wh questions practice; if you need a refresher, see the grammar and punctuation quiz.

She asked ______.
what time it was
what was the time
what time was it
what time it is
In this sentence, the clause acts as a noun clause serving as the object of 'asked'. The correct word order for a noun clause is subject - verb, so 'what time it was' is proper. Using 'what time was it' would turn it into a direct question, which is incorrect here. For more on noun clause structure, see .
I don't know ______.
where library is
where the library is
where is the library
what the library is
A noun clause must follow subject - verb order rather than invert them. 'Where the library is' correctly follows that order. 'Where is the library' would be a direct question. For details on word order in noun clauses, visit .
He forgot ______.
what did he say
what will he say
what he said
what has he said
'What he said' is a noun clause functioning as the object of 'forgot', with correct subject - verb order. The option 'what did he say' reverses that order to form a question. For more examples, see .
Do you remember ______?
what her name is
what is her name
what was her name
what her name was
Noun clauses require subject - verb order, so 'what her name is' is correct. 'What is her name' would make it a direct question. 'What her name was' changes tense inappropriately. Read more at .
Identify the noun clause in this sentence: "She wondered why the train was delayed."
was delayed
the train
why the train was delayed
She wondered
The phrase 'why the train was delayed' functions as a noun clause serving as the direct object of 'wondered'. It answers 'she wondered what?'. 'She wondered' is the main clause, and the others are parts of that clause. For more, see .
They can decide ______.
where they go
where are they going
where will they go
where they will go
In a noun clause used as an object, the correct order is subject + verb: 'where they will go'. 'Where will they go' is a direct question. To learn more about noun clauses as objects, check .
Which option correctly uses a wh-noun clause as the subject of the sentence?
What is decided by you matters.
What decide you matters.
What you decide matters.
What you will decide matters.
'What you decide' is a wh-clause acting as the subject, followed by the verb 'matters'. 'What you will decide' could also work in meaning but introduces future tense, which changes the nuance. The other choices are ungrammatical or passive in form. For subject clauses, see .
The teacher explained ______.
how does the experiment work
how the experiment is working
how the experiment works
how works the experiment
As an object, a noun clause must remain in statement order: 'how the experiment works'. The option 'how does the experiment work' reverses order into a question. For more on using how-clauses, visit .
Transform the question 'Where is the station?' into a noun clause to complete: 'I don't know _____.'.
where the station was
where was the station
where the station is
where is the station
Turning a question into a noun clause requires subject - verb order: 'where the station is'. Maintaining the present tense matches the original. Direct question forms or tense changes are incorrect. See for transformation rules.
I'm not sure ______.
why he left early
why did he leave early
why leaves he early
why he left early did
A noun clause used as the complement of 'sure' must use statement order: 'why he left early'. Inverting it makes it a question. For more on clause complements, visit .
Which sentence contains a wh-noun clause as the direct object?
Who will win the game?
I know who will win.
Who will win?
Who wins.
In 'I know who will win', the wh-clause 'who will win' serves as the direct object. The other options are direct questions, not noun clauses. For recognition tips, see .
She couldn't recall ______.
who had the letter sent
who had sent the letter
who sent the letter?
who sent had the letter
Correct noun clauses require statement order and no question mark. 'Who had sent the letter' fits as the object of 'recall'. The others either change word order or add a question form. Visit for more examples.
Which sentence correctly embeds a wh-noun clause after a preposition?
I'm interested in that you think what.
I'm interested what you think.
I'm interested in what you think.
I'm interested in how think you.
When a noun clause follows a preposition, it must directly follow it: 'interested in what you think'. Omitting 'in' or misordering the clause is incorrect. For advanced structures, see .
He didn't tell me ______.
who called and what they want
who had called and what wanting
who had called and what did they want
who had called and what they wanted
Two noun clauses can be coordinated with 'and'. Both must use statement order: 'who had called and what they wanted'. The others either invert one clause or change tense incorrectly. Read more at .
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Study Outcomes

  1. Identify Wh-Introduced Noun Clauses -

    Recognize noun clauses that begin with Wh-words (who, what, where, when, why, how) in various sentence structures.

  2. Analyze Clause Functions -

    Distinguish how noun clauses operate as subjects, objects, and complements within sentences to convey complete ideas.

  3. Differentiate Clause Types -

    Compare noun clauses with relative and adverbial clauses to accurately classify each clause type in practice examples.

  4. Apply Noun Clause Examples -

    Construct your own sentences using Wh-questions transformed into noun clauses, reinforcing the structure and usage rules.

  5. Evaluate and Correct Usage -

    Assess quiz responses to identify errors and solidify your grasp of proper noun clause formation and punctuation.

  6. Build Confidence in Grammar -

    Engage with targeted practice questions to boost accuracy and speed when working with noun clause examples in both written and spoken contexts.

Cheat Sheet

  1. Definition and Structure of Noun Clauses -

    Noun clauses are dependent clauses acting as nouns in sentences, typically introduced by Wh-words like who, what, or where. In "She explained why the meeting was canceled," the clause "why the meeting was canceled" is the object of "explained." Check academic sources such as Purdue OWL for thorough noun clause examples with answers.

  2. Functions: Subject, Object, and Complement -

    Noun clauses can function as subjects ("What he did surprised everyone"), direct objects ("I remember what she said"), or subject complements ("The challenge is where to start"). Recognizing these roles helps you master noun clause wh questions and boosts your ability to analyze complex sentences. University writing centers like OWL at Purdue offer detailed guidance on these functions.

  3. Key Wh-Words and Their Uses -

    Common Wh-words - who, what, when, where, why, and how - kick off noun clauses, each guiding a different type of information (person, thing, time, place, reason, manner). A mnemonic like "WHOSHE" (Who, What, When, Where, How, Why) can help you recall each starter. Practice turning direct questions into embedded clauses to see these Wh-words in action.

  4. Embedding and Punctuation Rules -

    Embedded questions in noun clauses do not use question marks: "I don't know where she went" is correct, unlike direct questions. Avoid commas unless you're indicating a nonrestrictive clause: "My concern is how, and when, we'll finish" shows extra emphasis. Cambridge English resources provide clear guidelines on punctuation in noun clause examples quiz contexts.

  5. Effective Practice Strategies -

    Boost retention by converting direct Wh-questions into noun clauses - e.g., change "Where did he go?" to "I wonder where he went." Incorporate online noun clause quizzes and practice noun clause examples daily to track progress. Leveraging spaced repetition tools and reputable exercises from university grammar repositories ensures steady improvement.

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