句型转换
We found the lesson was difficult to understand．
We found the lesson _______．
The girl got up earlier so that she might not be late again．
The girl got up earlier _______ be late again．
Jane doesn’t know how she can improve her Chinese．
Jane doesn’t know _______ improve her Chinese．
I find that it is difficult to speak English well．
I find _______ to speak English well．
It seemed they were writing something for somebody．
They seemed _______ something for somebody．
When we should hold the meeting is still to be discussed．
When _______ the meeting is still to be discussed．
The boss made the workers work all night．
The workers were _______ all night．
The progress which will be made soon is of great importance．
The progress _______ is of great importance．
It happened that you had known each other before．
You happened _______ each other before．
It is impossible that a child can lift such a heavy box．
It is impossible _______ such a heavy box．