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Can those ()at the back of the classroom hear me?A seat Bsit

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Can those ()at the back of the classroom hear me?A seat Bsit Cseated Dsat
A.seat
B.sit
C.seated
D.sat
这四个选项我经常分不清,求分析.
C
sit是不及物动词,seat是及物动词,比如He seated himself in a chair. sit是动词,sit down 坐下
seat 是名词,座位的意思
sit 相当于 be seated 前者多用于主动语态 后者多用于被动语态
seat 使.坐下,是及物动词,坐下来的是其宾语,所以要用被动形式be seated表示坐在.,坐落于.,或用seat oneself
sit 坐下,是不及物动词,坐下来的为主语