24. It was five o’clock in the afternoon _____they climbed up to the top of the mountain.

　A. that　　 　　　　　　　 B. until　　 　　　　 C. when　　 　　　　　　　 D. since

23. We live in a technological society ______ most goods are mass-produced by unskilled labor.

A. when 　　　　　　　　　　　　　　 B. where 　　　　　　　 C. how 　　　　　　　　 D. while

22. The forest guards often find campfires that have not been ______ completely.

A. turned down 　　　　　 B. turned over 　　　 C. put away 　　　　 D. put out

第一节　　　　 语法和词汇知识(共15小题；每小题1分，满分15分)

21. After he was put into ______ prison, many people joined ______ hands in_____ effort to get him set free.

A. the; their; an 　　　　　 B. /; the; the 　　　　 C. a; the; an 　　　　 D. /; /; an

30. We had nothing to do _______ watch TV.

　 A. but to　　　 B. then to　　　 C. but　　　 D. then