同义句she studies very hard to get good mards.but it's very hard

问题描述:

同义句she studies very hard to get good mards.but it's very hard
it is hard for her__ __hard __get good marks

It is hard for her to study hard to get good marks.
这个句子是将it 作为to get good marks 的形式主语.后面的to表示目的.为了得到更高的分数