—Susan stays alone in the classroom and looks sad.—to her?A What happens B What has happen

发布时间：2020-08-20 11:29:35

—Susan stays alone in the classroom and looks sad.
—    to her?
A What happens           B What has happened
C What is happening       D What was happening

网友回答

解析：B “某人发生了某事”即sth. happen to sb.，happen一般不用于进行时；Susan不高兴，说明是（已经）发生了某事，故用完成时，且完成时表示不高兴的原因。
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