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Ourteacherwasn'tyesterday.A.pleaseB.pleasedC.pleasingD.pleasure四个选项都怎么用啊?

题目详情
Our teacher wasn't ____yesterday.A.please B.pleased C.pleasing D.pleasure
四个选项都怎么用啊?
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答案和解析
选B,系动词后面选形容词.A是动词,C是动词ing形式,D是名词