Lily hasn't come to school yet,I think she ---- be ill,becau

问题描述:

Lily hasn't come to school yet,I think she ____ be ill,because she never comes late.
A,should B,must
1个回答 分类:英语 2014-11-17

问题解答:

我来补答
B must be 一定是.
再问: should 为什么不可以?
再答: 推测表示可能性上must 肯定系数最大,should 次之,可能性最小的是may be ;从because she never comes late,可知,肯定是。
 
 
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