用括号里的词的适当形式完成句子。
Mr Green has four ___________. (child)
I want to buy five ___________ for supper. (tomato)
Billy has a box of ___________. He is going to share them with Sandy and Tom. (chocolate).
Don’t throw these___________ on the floor. (knifer)
We have eight ___________ every weekday. (class)