The problem is very difficult .You must think it over ------
The problem is very difficult .You must think it over ------
The problem is very difficult .You must think about it caref
八年级英语1.Think it over, and you'll solve the difficult problem
The maths problem is very difficult .We must ( ) carefully.
【This physics problem 】is very 【diffichlt】.You must 【think i
the problem is very difficult ,You can't work it out------ -
一道英语改错题 急!改错This physics problem is very difficult. You must
改错A(This physics problem) is very B(difficult).You must C(th
The math problem is very diffcult.You must ___ carefully.
The problem is very difficult to ( )
The problem is very difficult.We can't work it out.The probl
the problem is very difficult.we can't work it out.(合并)the p