--- you return the book by Saturday,I will lend it to you

问题描述:

___ you return the book by Saturday,I will lend it to you
A only if B as long as C so long as
答案是B和C 都可选择
疑问1 so long as 不是应该用否定中吗
疑问2 Only if 为什么不可以用这句话中
1个回答 分类:综合 2014-11-27

问题解答:

我来补答
only if 用的话后面要倒装 so long as 我怎么不知道一定要用在否定句中.
 
 
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