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

 

A

【解析】

試題分析：考查時態(tài)。根據(jù)句意：在我加入他們之前，他們已經(jīng)在這個項目上進行了一周時間�，F(xiàn)在我們依然在努力，因為到目前為止還沒有什么好的結(jié)果。第一個空work的動作發(fā)生在joined之前，而且動作依然在繼續(xù)，所以用過去完成進行時。第二個空有now這一時間狀語，用現(xiàn)在進行時。所以答案選A。

考點：考查時態(tài)

 

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