问题补充：
-------Take a break, Amy. You on the piano all morning.
-------I’d like to, but this time next week I a concert at Music Hall.
A. have practiced, will give
B. are practicing, am giving
C. have been practicing ,will be giving
D. will have practiced, have been giving
答案：
A. have practiced, will give
B. are practicing, am giving
(答案→)C. have been practicing ,will be giving
D. will have practiced, have been giving
解析：考查时态。第一空根据all morning这个时间状语，这里使用现在完成进行时，表示一直在做某事。句意：整个早晨，你都在练习钢琴，休息一下吧！第二空根据前面的this time next week下个星期的这个时间，应该是将来进行时，表示在将来某个时间正在进行或者发生的事情。
