问题补充：
—What’s wrong with you yesterday?
—When I was playing football, my strength and I fell down.
A. gave up
B. gave off
C. gave out
D. gave in
答案：
A. gave up
B. gave off
(答案→)C. gave out
D. gave in
解析：考查短语辨析。give up放弃; give off发出(光)；give out分发，发出；公布，发表；用尽，精疲力竭；give in屈服 根据意思，当我踢足球时，我的力气耗尽并且跌倒了。
