问题补充:
_ We’ve waited the bus stop for half an hour.
_ No hurry. The bus will arrive three o’clock..
A. for, after
B. at, after
C. for, in
D. at, in
答案:
A. for, after
(答案→)B. at, after
C. for, in
D. at, in
解析:此题重点考查介词的基本用法,在公共汽车站要用介词at;在几点以后要用介词after。