we dont think with goups very helpful
we dont think__with goups__very helpful.
Astudy,is Bstuding,is Cstuding,are D,study,are
人气：464 ℃ 时间：2020-06-08 17:55:22
解答
选 B
这里是一个宾语从句 省略了that we dont think that studing with goups is very helpful.
所以这里的studing 是非谓语的用法 ,表示主动 studing with goups是一件事情,所以用is
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