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

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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

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

We( )the problem for quite some time,but we( )any conclusion 单句改错1、We have discussed the problem for quite some time,but Then coming the time for lunch,but we found it was a problem We were kept____for quite some time. We ______ for quite a long time. 英语翻译But with any luck,we could solve the problem in two shak But for their help,we ( ) the program in time The lamb has been dead for quite some time But we don`t have( ) 括号里是填some还是any we may safely draw the conclusion that. （ )1.How relish do we need for the shake?A.some B.any C.many we could go for some food some time是什么意思?