1. (2019六下·枣庄期中) Read and fill in the blanks. 读歌谣，根据歌谣填空。

My small cat

    My small cat, my small cat. My cat is smaller than yours.

    It's smaller and shorter and younger than yours.

    My big dog, my big dog, my big dog is than yours.

    It's bigger and and than yours.