看一看，填一填。

This watermelon is _________, but that one is ___________.

This ruler is __________  than that ruler.

That ruler is __________  than this ruler.

Lingling's bag is _________ than Amy's.

Amy's bag is _________ than Lingling's.

       中 * * 党十三大提出社会主义初级阶段基本路线的一个中心是                                    两个基本点是                                               和                                                     。