24. ---- How about putting some pictures into the report? ----________A picture is worth a thousand words. (A) No way. (B) Why not? (C) All right? (D)No matter.

29.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