His grandma ________ ______ two years.
A. died; since B. has been dead; for C. has died; for
Chongqing ______ a lot in the past few years.
A．has changed B. changed C. is changing
Mr. Smith didn’t tell us ______.
A. where he livesB. where he livedC. where did he live
—How many people did you see in the meeting room?
— ______.
A. Nothing B. No one C. None
— Your bike is very beautiful. How long ____you _____it? — Just two weeks.
A. have; bought B. did; buyC. have; had