be good at/for/to

问题描述:

be good at/for/to
Sharp chopsticks are good___picking the fish from the bones.
at
to
with
for
谢谢呀 也请说说为什么吧

选 for ,意思是锋利的筷子对于从骨头上夹鱼肉有帮助
be good at...擅长...
be good for...对...有好处
be good to sb 善待某人