We all think it is Mr Wang as well as his parents that _______ for his son’s bad performance at school.
It’s high time we our attention to this problem.
It’s necessary that he a recognized qualification .
We demanded that we of any change in the plan.
--- John went to the hospital alone. --- lf he me about it ,I would have gone with him (2010 .天津)
Maybe if I science, and not literature then, l would be able to give you more help. (2011 .北京 )