【題目】The boys are in the room. (改為否定句)
The boys in the room.

【答案】aren't
【解析】將含有系動詞be的系表結(jié)構(gòu)的肯定句變否定句時在be后加not,此處在are后加not,are not=aren't,所以答案是aren't。

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