We( )the problem for quite some time,but we( )any conclusion

问题描述:

We( )the problem for quite some time,but we( )any conclusion yet.
A.have been discussing.haven't reached
B.have disscussed.haven't been reaching
C.discussed.haven't reached
D.had discussed.haven't reached
1个回答 分类:英语 2014-10-17

问题解答:

我来补答
简单做法:先看后一空:有yet,所以是have not done 即现在完成时+ 主动,(固定搭配:reach a conclusion)
第一空:由于后有提示还未结束,所以这个动作于过去开始,到了现在,将来还有可能继续,所以典型的have been doing即现在完成进行时结构
最后答案明确:A
 
 
展开全文阅读
剩余:2000