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
David has won the first prize in singing; he is still very excited now and feels________ desire to go to bed.
A. the most B. more C. worse D. the least
________ in the mountains for a week, the two students were finally saved by the local police
A. Having lost B. Lost C. Being lost D. Losing
I'm moving to the countryside because the air there is much fresher than________ in the city.
A. ones B. one C. that D. those
-- Is Bob still performing?-- I'm afraid not. He is said________ the stage already as he has become an official.
A. to have left B. to leave C. to have been left D. to be left
-- 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.
