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
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
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.