“One one zero” 表示 ____。A. 火警 B. 匪警 C. 急救中心
The man makes a living _______ teaching. A.without B.with C.by
He has written many books, but _______ of them are good. A.few B.many C.any
There is _____ boat in ________river. A. a; the B. the; a C. a; a
Some of my friends are interested in science,but none of them can tell_____.
—I’m worried about the coming test. —You should work hard for it,_____you’ll have to take it again.