had

His wife had the front door painted green yesterday, _____ she?

Six months had _______, and we still had no news of them.

-- Hi, welcome back! Had a nice trip?  ___________________________

You don’t know about the difficulty I had ______ the work then at all.

He changed his name,　　　　that nobody would find out what he had done before.

I didn’t know the word; I had to ______ a dictionary.