题目内容
The children ________ on the playing ground when I left school.
[ ]
A.played
B.are playing
C.was playing
D.were playing
答案:D
解析:
解析:
|
精析:此句是个复合句。以when引导的时间状语从句,从句动作发生在过去,而主语的动作发生在从句动作的当时,因此主句的谓语动词用过去进行时,其结构是“was/were+动词的现在分词”。此句中的主语children是复数,因此选择were playing。 |
练习册系列答案
相关题目