We saw him ________ the building and go upstairs．

1. A.
   to enter
2. B.
   enter
3. C.
   entering
4. D.
   entered

句型转换

1.They can hardly do the things they like. (改为反意疑问句)

They can hardly do the things they like               ？

2.They will finish building the house in two weeks. (对划线部分提问)

_________ __________ will they finish building the house ?

3.Lucy often lends us some money . （同义句）

We often ________ some money _______ Lucy.

4.We saw him go into a shop yesterday afternoon. (改为被动语态)

He was ______  ______ go into a shop yesterday afternoon.

5.She has already finished reading the novel. （改为否定句）

She _______ finished reading the novel ________.