It's quite _____ that the work will be finished ahead of time.

问题描述:

It's quite _____ that the work will be finished ahead of time.
A.certain B.certainly C.sure D.surely
请问为什么选A,而其他的不行呢?

应选择A
首先用排除法,排除B和D,B和D都是副词,而系动词后应用形容词(quite是修饰后面的形容词的)
其次,C.sure一般在主语是第一或第二人称的时候使用,例如:I'm sure或You're sure
因此,应选择A.
如果要用sure,本句可改造成I'm sure that the work will be finished ahead of time.
以上,仅供参考!