A writing brush is made of b_ and animal hair.
问题描述：
A writing brush is made of b_ and animal hair.
After a strong wind,the ground was full of fallen l_.
I'm afraid she has a _(体重) problem.
答
1 bamboo 竹子
2 leaves 叶子（ FALLEN LEAVES 落叶）
3 weight
加油!不明白再问!