第一个:划线部分是哪个?
we:who has three dictionaries?
three:how many dictionaries do you have?
第二个:they have pencil cases.
第三个:no,they don't.yes,they do.
第一个:划线部分是哪个?
we:who has three dictionaries?
three:how many dictionaries do you have?
第二个:they have pencil cases.
第三个:no,they don't.yes,they do.