题目内容：

用括号里的词的适当形式完成句子。

1.Mr Green has four ___________. (child)

2.I want to buy five ___________ for supper. (tomato)

3. Billy has a box of ___________. He is going to share them with Sandy and Tom. (chocolate).

4.Don’t throw these___________ on the floor. (knifer)

5.We have eight ___________ every weekday. (class)