477.Did you watch the basketball match yesterday?
Yes, I did.You know, my brother _____ in the match.
A.is playing
B.was playing
C.has played
D.had played
478.Do you think we should accept that offer?
Yes,we should, for we ________ such bad luck up till now, and time _____ out.
A.have had；is running
B.had；is running
C.have；has been run
D.have had；has been run
477.答案是B;根据句意，我的弟弟在那场比赛中上场打球，故选过去进行时。
478.答案是A;第一空up till now与现在完成时连用；第二空根据句意，时间快要用光，故选现在进行时表示将来。
