it seems that she knows everything It's not easy for them to work out that problem.
问题描述：
it seems that she knows everything It's not easy for them to work out that problem.
改同义句：
1.It seems that she knows everything.
She ____________________ everything.
2.It's not easy for them to work out that problem.
______________that problem ____________________not easy for them.
3.last month she spent 100 dollars on her new MP4.
Last month she ___________100 dollars ________________her new MP4.
答
1.seems to know
2.To work out is
3.paid for
1.结构是it seem(s) that + 从句
=sb seem(s) to do sth.
还有一种是 it seem(s) to be+形容词
3.结构是 ;sb spend money (in) buying sth./on sth = sb pay money for sth
2.结构是；it's + 形容词 +for sb to do sth = To do sth.is + 形容词+ for sb
it's为形式主语