jim is tall ,but his sisters ,mary and ka

问题描述:

jim is tall ,but his sisters ,mary and ka
jim is tall ,but his sisters ,mary and katty ()short
1个回答 分类:英语 2014-10-17

问题解答:

我来补答
are ,用and连接的,用are.若是用or连接的,用is
再问: A are both B all are C are all D both are
再答: 选A
再答: all用于三个即三个以上。both指两个的全都
再答: all用于三个及三个以上
 
 
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