题目内容：

根据中文提示，写出单词的正确形式 (每空限填一词).

1.Which city has the __________ ( 大 ) population in China ?

2.A ____________ ( 十亿 ) is a thousand million. .

3.Don’t skate on the _________ (冰  ). It’s too thin.

4.Some farmers are still working in the __________ ( 田地 ).

5.People often play _____________(  玩笑) with other people on April Fool’s Day.

6.Yesterday the grandfather bought a ________ (兔子  ) for his grandson.

7.The Chinese eat with ______________( 筷子 ).

8.Don’t make any __________ ( 噪音 ). They are sleeping.

9.______________ (  幸运), no one was badly hurt.

10.The milk __________( 尝 ) a little sour.