问题补充:
---Hi. Lucy! What’s wrong with you? You look so worried.
---I have many problems to solve, but I don’t know first.
A. how to deal with
B. when to deal with
C. what to deal with
D. how to do with
答案:
A. how to deal with
B. when to deal with
(答案→)C. what to deal with
D. how to do with
解析:deal with处理,不定式短语中缺少逻辑宾语,故选C,做什么。How和when不能做宾语,只能做状语。