请问:I don't know how to do this problem.中
请问:I don't know how to do this problem.中
i don't know how to solve this problem.
I still don't know how to solve this maths problem.Can you g
I don't know what/how/when to do with the problem选择的原因
The math problem is so difficult,I don't know __ A how to do
I really don't know how to ___the problem?(处理)
i don't know ---with the problem(填how to do 还是what to do ).3
I don't know ________with this problem.
I really don't know how to read this word.
I really don't know how to explain this pnblem
i don't know how to do it句型转换
i don't know ()to do.填what还是how