35. Global oil prices ______ sharply in the past two years.

32. ---Why on earth didn’t you answer the phone?
---I’m sorry, but the doorbell _____ too.

27. ---Ken, why do you look so tired? 
---I _____ myself _____ the climate since I came here.

27. ---- Mr. Wang got the first prize in the singing competition last week.
---- Oh. That’s what he ______ for years.

35. In a room above the store, where a party _____ in half an hour, some workers are busily setting the table.

32. --- Bob, you are absent-minded!
--- Oh, I’m sorry I _______ attention to you, Miss Shute.

I don't know if you noticed their behaviors or not, but we______.

15．--- Do you have any blouses in yellow?
--- Sorry, we don’t. What about this cream color? It___________well with almost anything.

7．John’s ability to learn from observations and experience_______greatly to his success in public life.

6．--- Is there any possible way to help them get rid of such a bad habit?
--- To tell the truth, it’s very hard. But we teachers________on this problem.