Travelling by air may be _______ A.quicker B.more quicklyWhich is_英语解答

Travelling by air may be _______ A.quicker B.more quickly
Which is the right answer? And why?

人气：250 ℃　时间：2020-01-29 13:01:40

解答

Abe动词后面跟的是形容词
more quickly是副词Travelling by air是算名词吧？