高中英语选择 there are some health problems that,when---in time,ca

问题描述:

高中英语选择 there are some health problems that,when___in time,can become bigger ones later on.not treated .not being treated.not to be treated 选什么 为什么
1个回答 分类:英语 2014-11-30

问题解答:

我来补答
not treated
when not treated=when it is not treated
考查非谓语动词作状语,在时间或条件的非谓语前可加if/ unless/ even if/when等,使其所表示的条件或时间一目了然.
 
 
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