1、three,is,it,pair,for,dollars,one（连词成句）
It is three dollars for one pair.每双是三美元.
2、补全对话：
Can I help you?
Yes,please.I need some fruit.
What fruit do you like?
I like bananas very much.
（Look,瞧）at these bananas.They are very fresh.
How much are the four bananas?
They‘re six dollars.
Ok.I'll take them.
What （about,关于）the pears?They are fresh,too.
No,thanks.
3、完成句子：
这二十支铅笔的价格是10美元.
（The）（price）（of）the twenty pencils（is）ten dollars.
4、用介词at,in,for填空：
（For）girls,they like to buy skirts.
The woman（in）purple is my mother.
（For）these fruits are（at）our great sale.
We have bags（for）sports.
We have black trousers（for）only￥20.