题目内容：

- I don't know_________to do with this maths problem.It's too hard.
-You can ask your classmates or teachers for help.
A.which B.how C.what D.when
为什么B不行呢?

优质解答

译文：我不知道该拿这个数学问题怎么办.what和do with 连用； how和deal with 连用,都是‘怎样处置’的意思.如：我不知道该如何处理这个问题I don't know what to do with the problem.I don't know how to deal wit...