请把下列句子变为被动语态：我只知道被动语态的构成是：be＋动词过去分词1.The teacher is keeping

请把下列句子变为被动语态：
我只知道被动语态的构成是：be＋动词过去分词
1.The teacher is keeping the pupils at school for a revision.
2.You must finish the article before Friday.
3.They promised Mary a new doll for her birthday.
CLEANER07 1年前 已收到3个回答 举报
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我想知道谁爱我 幼苗

共回答了16个问题采纳率：75% 举报

1.The pupils at school are kept for a revision by the teacher.
2.The article must be finished by you before Friday.
3.Mary was promised a new doll for her birthday by them.

1年前

2

我爱笑人 幼苗

共回答了67个问题 举报

The pupils are being kept by the teacher for a revision.
The article must be finished before Friday.
Mary was promised a new doll for her birthday by them.

1年前

2

我的理论 幼苗

共回答了56个问题 举报

1. The pupils are being kept by the teacher at school for a revision.
现在进行时的被动语态：S.+be(is/am/are)+being+done
2. The article must be finished by you before Friday.
带有情态动词的被动语态：S.+情态...

1年前

1
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