They ______ on the program for almost one week before I joined them, but still no good results _______ so far.
A.had worked ; come out | B.have worked ; came out |
C.had been working ; have come out | D.have been working ; have come out |
推荐套卷
They ______ on the program for almost one week before I joined them, but still no good results _______ so far.
A.had worked ; come out | B.have worked ; came out |
C.had been working ; have come out | D.have been working ; have come out |