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100字范文 > As far as we know half of Canadian teenagers do not get enough sleep on school nights ?A

As far as we know half of Canadian teenagers do not get enough sleep on school nights ?A

时间:2020-05-14 18:34:20

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As far as we know  half of Canadian teenagers do not get enough sleep on school nights  ?A

问题补充:

As far as we know, half of Canadian teenagers do not get enough sleep on school nights, ?

A. do they

B. don’t they

C. don’t you

D. isn’t it

答案:

(答案→)A. do they

B. don’t they

C. don’t you

D. isn’t it

解析:考查反意疑问句。主语为第三人称复数,句子也是否定句,因此反意疑问句用肯定的形式。

句意:就我们所知,有一半的加拿大青少年都没有足够的夜间睡眠,是吗?

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