Grammar with explanation

The boys ……….caught a lot of fish before it started to rain . ( had + Pp + before + التصريف الثاني

I lost my phone . I can’t find it……………………( somewhere إثبات )( anywhere نفي او سؤال )

€�……….you watch the film last night ? ( do, does مضارع )( did ماضي)

This house …………built in 1670. ( am, is , are , مضارع )( was , were , ماضي )

Look, it………….raining . ( look , listen , now , at the moment ,+ am , is , are +ing )