23. After working until midnight for two weeks he finallyand had to stay in the hospital.

问题补充：

23. After working until midnight for two weeks, he finallyand had to stay in the hospital.

A. broke up

B. gave in

C. broke down

D. gave up

答案：

A. broke up

B. gave in

(答案→)C. broke down

D. gave up

解析：可联系答案网客服索取此答案。