_ We’ve waited the bus stop for half an hour. _ No hurry. The bus will arrive three o’cl

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。