-Tom,don’t throw the rubbish on the floor.We should keep the classroom . -Oh,sorry.Miss Wang. A.clean B.quiet C.dirty
—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; buy C. have; had
—Look! What a nice classroom! — Yes, it ________ every day.A. is cleaning B. has cleaned C. is cleaned
—It smells terrible. What has happened here?—Look, there is a chemical factory ____waste water___ the river.A. pour; into B. pouring; into C. poured; to
— Where are Maria and Kangkang ? — They aren’t here. They ________ England. A. have been to B. have been in C. have gone to