a) isn't it
如果是通过加否定前缀表否定的,作肯定句看：
再如：
It is unimportant,isn't it?
比较：
It is not important,is it?
It's impossible for a child to do so much work within a short period of time,______?
It's impossible for a child to do so much work within a short period of time,______?
a) isn't it b) is it c) has it d) hasn't it
为什么是a?不是有impossible吗?
a) isn't it b) is it c) has it d) hasn't it
为什么是a?不是有impossible吗?
英语人气：113 ℃时间：2020-05-11 02:56:43
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