1．So far this year, we ______a fall in house prices by between 5 and 10 percent.
A. saw B. have seen C. had seen D. see
2.--______ my glasses? --Yes, I saw them on your bed last night.
A. Do you see B. Did you see C. Have you seen D. Had you seen
3.This is the third time that he ______to the beautiful coastal city.
A. have gone B. has gone C. has been D. goes
