选B. going on.
What's going on= what’s happening?
发生了什么?怎么了?
there are many people over there .i wonder what's __
there are many people over there .i wonder what's __
Agoing B going on C going at D goingin
Agoing B going on C going at D goingin
英语人气：745 ℃时间：2019-10-30 15:45:25
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