问题补充:
-- I don’t know with this problem. It’s too hard.
--- You can ask Mr Wang for help.
A. which to deal
B. when to deal
C. what to deal
D. how to deal
答案:
A. which to deal
B. when to deal
C. what to deal
(答案→)D. how to deal
解析:D 考查固定短语。“我不知道如何处理这个问题。”宾语是this problem,故不用what做do的宾语,排除C,选D。