traveling by air may be ( ),but not so ( ) A.quicker;cheaper B.more quickly;cheap C.quicker;cheap

问题描述:

traveling by air may be ( ),but not so ( ) A.quicker;cheaper B.more quickly;cheap C.quicker;cheap
D.more quickly;cheaper

第一空用比较级,第二空用原形就好
但是quickly的比较级可以是quicker,也可以是more quickly
所以BC都可以
搭飞机旅行可能更快,但是没那么便宜