问题补充:
---You’re late! You were to be here an hour ago.
--- Sorry, Mr. Hu.
A. sorry
B. surprised
C. supposed
D. happy
答案:
A. sorry
B. surprised
(答案→)C. supposed
D. happy
解析:sorry遗憾的,抱歉的;surprised吃惊的;supposed假定的;happy高兴的。句意:你迟到了,你应该一小时前到达这里的。Be supposed to do sth应该做某事,被期望做某事,故选C。