-Im not finished with my dinner yet -But our friends _____ for us.

问题描述:

-Im not finished with my dinner yet -But our friends _____ for us.
A will wait B wait C have waited D are waiting 答案为D为什么不能选C?

D
句子的意思:- 可是我还没吃完呢!- 但是朋友们( )我们.
所以还是D比较好,D是正在等,C是已经等了,现在不一定在等.