Have you________ Betty yet?—Not really．She won’t forgive me for having told her lies．

You seem familiar with Mr. John?—Of course, we _________ together for three years in the 1990s.

Look at the ______ ! It’s ______ heavily now.

I do my homework _____ ten o’clock every night.[ ]

I looked for the key _______ the door, but I didn’t find it. [ ]