Elephants eat ____ ,but they can move ____ when necessary.

问题描述:

Elephants eat ____ ,but they can move ____ when necessary.
Elephants eat ____ ,but they can move ____ when necessary
A noisy;silent B noisily;silently
C noisily;silence Dnoisy;silence

B 因为eat和move都是动词 要用副词修饰