They _____ on the program for almost one week...

They _____ on the program for almost one week before I joined them and now we ____ on it as no good results have come out so far.

A. had been working ;are still working

B. had worked ;were still working

C. have been working ;have worked

D. have worked ;are still working

高三英语单项填空中等难度题查看答案及解析

They _________ on the program for almost one week before I joined them, and now we are still working on it as no good results have come out so far.

A. have worked                       B. had worked

C. have been working                  D. had been working

高三英语单项填空简单题查看答案及解析

They ______ on the program for almost one week before I joined them, and now we ____ on it as no good results have come out so far.

高三英语单项填空中等难度题查看答案及解析

They _____ on the program for almost one week before I joined them, and now we _____ on it as no god results have come out so far.

A. had been working; are still working      B. had worked; were still working

C. have been working; have worked        D. have worked; are still working

高三英语单项填空困难题查看答案及解析

They ______on the program for almost one week before I joined them, and now we _____on it as no good results have come out so far.

高三英语单项填空中等难度题查看答案及解析

They ______ on the program for almost one week before I joined them, and now we _____on it as no good results have come out so far.

A. had been working; are still working        B. had worked; were still working

C. have been working; have worked         D. have worked; are still working

高三英语单项填空中等难度题查看答案及解析

They _______ on the program for almost one week before I joined them, and now we________ on it as no good results have come out so far.

A. had been working; are still working       B. had worked; were still working

C. have been working; have worked       D. have worked; are still working

高三英语单项填空中等难度题查看答案及解析

They _____ on the program for almost one week before I joined them, and now we _____ it as no good results have come out.

A. had been working; are still working

B. had worked; were still working

C. have been working; have worked

D. have worked; are still working

高三英语单项填空中等难度题查看答案及解析

They ________ on the program for almost one week before I joined them, and now we ______ it as no good results have come out so far.

A. had been working; are still working       B. had worked; were still working

C. have been working; have worked          D. have worked; are still working

高三英语单项填空困难题查看答案及解析

_____the program, they have to stay there for another two weeks.

A．Not completing                         B．Not having completed

C．Not completed                         D．Having not completed

高三英语单项填空中等难度题查看答案及解析