问题
选择题
—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
答案
答案：B
根据题意，该空表示在过去某段时间(yesterday)内正在进行的动作，意思是昨天我弟弟正在参加比赛，因此，应用过去进行时。