Tom's dog is ill.He looks worried and doesn't know()

问题描述:

Tom's dog is ill.He looks worried and doesn't know()
a.when to do b.how he could do c.what to do d.what can he do

C 括号中翻译为“他能干什么”,直译是what can he do,但是这里是从句,所以要用陈述句语气(what he can do),前面有了主语he,可以简写为what to do,这里的to do 是非谓语动词. 祝学习进步O(∩_∩)O若有疑问,请指出,...