请写出下列单词的复数形式。

1.apple_______

2.teacher________  

3.boy________

4.baby_______  

5.potato_____  

6.tomato  ________

7.box _______

8.bus    ______

9.Chinese_____

10.knife _________ 

11.man   ________

12.woman ______

13.tooth________

14.foot___________

15.child ________

1阅读下面短文，并借助连环图和上下文补充所缺信息。每个空只能填写一个形式正确、意义相符的单词。

Yesterday morning an old woman  1.  a lot of things in a shop．She put   2.   into a big box ．She was going to carry it to the   3.   ，but the box was heavy and the car wasn't near．At that time Li Ming and Wei Hua were  4.   by the car and talking．When they  5.   the old woman and the big box beside her，they  6.   to help．They lifted the heavy box and  7.   it to the car．Suddenly the box __8.   down and one of Li Ming's feet was badly hurt．He had to   9.   in bed in the hospital for several days．He was   10.   about his lessons．But his friend Wei Hua said，“Don't worry about your lesson . I'll come to help you with your lessons after class every afternoon．”