( ) Why not ____ your teacher for help when you can’t finish ___ _英语解答

( ) Why not ____ your teacher for help when you can’t finish ___ it by yourself 选哪个为什么
A.ask;write B.to ask;writing
C.ask;writing D.asking;write

人气：250 ℃　时间：2019-12-15 08:06:22

解答

C
why not=why don't you,后面接动词原形
finish doing sth,用ing形式