题目内容：

根据句子意思，用括号中所给单词的适当形式填空。

1.Next Tuesday is my father’s       (forty) birthday. I’ll buy some flowers for him.

2.My sister is hard-working. She teaches       (she) Japanese when she is free.

3.Our English teacher asks us        (speak) English in class.

4.Don’t be so       (patient). He is just a child.

5.We will be       (punish) if we take no action to protect the environment.