the children are required not to leave the building unless.t

the children are required not to leave the building unless.to do so
A being told B they will be told C be told D told
如何判定A不对,如何排除它?

riverk 1年前已收到3个回答举报

投入qq 幼苗

共回答了23个问题采纳率：91.3% 举报

unless在这里做连词,连接两个句子,所以一定接一个句子,主语+谓语+其他,而主语在前面提到,所以后面可以连be动词一起省略,（the children/they are）told to do so.A.是一个非谓语VING形式,所以错误,需排除

1年前

数学21 幼苗

共回答了54个问题举报

B
unless 是状语从句的引导词，后面应加句子。
A being told 是现在分词一般式的被动形式，只能做非谓语。

1年前

雨夜桂花幼苗

共回答了220个问题举报

C
unless在这里做连词，连接两个句子，所以一定接一个句子，主语+谓语+其他，而主语在前面提到,所以后面可以连be动词一起省略，（the children/they are）told to do so

1年前

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