AbigpartywasheldinNO．18MiddleSch

发布时间：2020-07-12 08:32:34

A big party was held in NO．18 Middle School last night, the teacher with students ________ singing and dancing happily at the party．












A.is











B.was










C.are










D.were

网友回答

B解析本句的主语是the teacher，系动词要用单数形式，根据句子的意思，应用过去时。
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