—I really like the modern digital camera you lent me last week. — . —And thank you very much for letting me keep it so long.
Although the plan hasn’t been approved______ present, he insists______ carrying it out.
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.