题目内容：

要讲理由,为什么选这个哟
1、someone is knocking at the door
i who it is
A am going to see B will look at C will see D am going to look at

优质解答

选A
首先因为see强调结果,look at强调动作,要看是谁在敲门当然用see,排除B和D
然后be going to do sth强调有目的的有计划的去做某事,所以选A