— Did Alan enjoy seeing his old friends yesterday?— Yes, he did. He _____ his old friends for a long time.
Last Monday, I bought a second-hand computer, ______ was very slow.
The lecture hall______ by Doctor Li in the 1980s can contain at most 6,000 people.
That day, we______ for the train station when Tom fell and hurt his legs badly.
Mr Smith closed all the windows while driving______ he wouldn’t catch a cold.
______ is a possibility______ Jim will get first place in the long jump.