A. space B. camp C.safety
—How many people did you see in the meeting room?— .A.Nothing B.No one C.None
—He is late for the meeting.— A.So I am. B.So am I. C.So do I.
—What a nice motorbike! How long have you it?—About half a year.A.had B.bought C.taken
There are several chemical factories waste water into the river.A.pour B.pouring C.pours
Last year,the population of that city 7,120,000.A.was B.were C.has