题目内容：

根据所给词的正确形式填空。

1.The teacher warned us ______(not be ) late again.

2.His grandmother has _____ (die) for two years.

3.I want to know who ____ (steal) my computer.

4.We can go shopping instead of ____ (stay) at home.

5.I make friends by ____ (try) to talk to them first.