-- I don’t know ______ with this problem. It’s too hard.

1.-I don't know __to do with this problem.It's too hard. I don not know _____ with this problem.It is too hard._You c 选择填空（）1. I don’t know（）work out the problem . It’s too hard i don't know___with this problem it is too hard 为什么是what to - I don't know_________to do with this maths problem.It's to I don't know ________with this problem. I don't like this ______.It's too long.这里为什么填dresses而不是dress The maths problem is so hard.I really don't know ______. i don't know how to solve this problem. I don't know _____do with the problem. I don't quite like______,It's too hard.A:the fifth lesson B: I don't know how they deal with the problem=I don't know （ ）