选择方框中合适的句子完成对话。(10分）
Mum: David, what would you like for dinner?
David: ___⑴_ _
Mum: I like fish, too. Do you like big fish or small fish?
David: ___⑵_ _
Mum: OK, I’ll buy a big one.
David: ___⑶_ _
Mum: It’s a good idea.
David: ___⑷_ _
Mum: I think we have some grapes in the fridge.
David: ___⑸_ _
Mum: OK, I will go to the supermarket now.
当你询问爸爸在超市买了什么，你应该说：.
A.What did you buy at the supermarket?
B.What did you buy at the shop?
C.What did you buy at the book shop?
当妈妈问你买了多少奶酪时，你应该说：.
A.Four bottles.
B.One kilo.
C.Four pears.
当你想告诉爸爸这是你的朋友时，你应该说：.
A.This is my friend.
B.This is my teacher.
C.This is my brother.
从选项中选出对应的的答案。(5分) 
__________forty children
A.There is B.There are C.There isn‘t