可以吧how many pencils do you want 简略成How many do you want 么
问题描述：
可以吧how many pencils do you want 简略成How many do you want 么
答
如果之前有提到的话就可以如：
买方：Do you sell pencil?
卖方：Yeah,how many do you want?
或
买方：I would like to buy some pencil.
卖方：How many do you want?
因为之前已有提到pencil了,所以没必要重复