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【Theyoftencleantheirclassroomafterschool.(改为被动语态)Theirclassroom___often___bythemafterschool.】
更新时间:2025-05-26 06:50:09 专题:英语
问题描述:

They often clean their classroom after school.(改为被动语态)

Their classroom___ often___ by them after school.

黄文东回答:   题目要求改为被动语态,由原句的“clean”可知句子是一般现在时,应运用一般现在时的被动语态结构“am/is/are+动词的过去分词”,又主语是“Theirclassroom”   第三人称单数,故答案为:is,cleaned

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