can you see ____?No.Let's go and have a look .
-can you see ____ ?
-No.Let's go and have a look .Maybe we can help them.
A.what was going on there B.what are they doing there
C.what were they doing there D.what is going on there（请说明）
人气：437 ℃ 时间：2020-04-09 09:47:03
解答
选第四个.
what are they doing表示他们正在做什么.
而第四个表示有事情发生.
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