Though ________ to stop, the speaker kept on talking at the meeting.

[　　]

They made an important decision ______ the end of the meeting.

　 A. in 　 B. by  C. on 　 D. at

— Why weren't you at the meeting?

　　　　— I ________ for a long distance call from my sister in America.

　　A. was waited　　　　　　　　　　B. was waiting

　　C. has waited　　　　　　　　　　 D. have been waiting

23．- Why weren't you at the meeting?

　　- I ________ for a long distance call from my sister in America.

— Why weren't you at the meeting?
　　— I ________ for a long distance call from my sister in America.