Ought to, needn't, should, have to, ought to, must, mustn't
{"name":"Ought to, needn't, should, have to, ought to, must, mustn't", "url":"https://www.quiz-maker.com/QPREVIEW","txt":"It isn't going to rain so we ______ bring an umbrella, We __________ buy food for the party tomorrow morning before the store closes, The teacher told us that we ____________ sign up for the exam in order to take it","img":"https://www.quiz-maker.com/3012/images/ogquiz.png"}