用括号内单词的适当形式填空。

1. Unable _______ (sleep), he got up and made himself a drink.

2. "What do you want?" she said, without _______ (look)at me.

3. The young man_______ (sit)between John and Jack is the editor of our school magazine．

4. Tom was late, he opened the door quietly, _______ (move)in and_______ (walk) carefully to his seat.

5. The next thing _______ (do) is to try our best to help the girl.