题目内容
__________for the bus, I heard a noise,
| A.While waiting | B.While I waiting | C.I was waiting | D.Waited |
A
考查状语从句的省略式,英语中的主从句的主语一致时,可以省略从句的主语和be动词,while waiting="while" I was waiting,句意是:当我等汽车的时候,我听到一生噪音。选A。
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