一个数的因数一定比这个数字小
____ ____ on the grass.
All the children like Mr. White very much because he often makes them _______.
照样子，写词语。
（沙沙）的声音 （嗖）的一声
____的流水 ____的蜜蜂 ____的小雨
____的心跳 ____的乌鸦 ____的风声
