Question

Some experts think that language learning is much__for children as their tongues are more flexible.

A.easy B.easier C.easily D.more easily
答案给的是B，为什么不选D？

Answer 1

这里的关键是language learning，用了ing形式是的整个词语具有名词的性质，所以后面应该选择形容词的相关形式。

希望帮到你！

Answer 2

be + adj. (A or B) :
...is much easier...

action verb + adv. (C or D)
I can complete the task more easily than a child.
complete...more easily

Answer 3

easier 因为前面是系动词is,要接形容词做表语。