题目内容：

根据句意用所给单词的适当形式填空。

1.Earth is becoming more and more ________ (crowd).

2.Today is my sister’s __________ birthday. She feels very happy. (twenty)

3.Do you know the _________ , who broke the window? (true)

4.Don’t miss Mayun’s wonderful speech. I’m sure each of us __________(attract)

5.What a heavy rain! We have no choice but ________(wait) at the bus stop.