The____Lesson is very difficult but very important.You must
The____Lesson is very difficult but very important.You must
The problem is very difficult .You must think it over ------
I know that it's very difficult to stop smoking but you must
_____ pass this important but difficult exam very easily.
The problem is very difficult .You must think about it caref
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
一道高一句型转换1.This meeting is very important,so you must attend
The maths problem is very difficult .We must ( ) carefully.
i know that it is very difficult to stop smoking ,but you __
This question is very (difficult),but that question is much
You for me is really very important