25. The smart criminal always paid ___________ cash, so the police could not track him down.
A. on B. by C. in D. for 答案:C 我选B
29. The workers were so tired that they fell asleep where they _________ without undressing.
A. lying B. were lying C. lied D. were lain 答案:B
30. You shouldn’t have a child ____________ swimming alone in the lake. It’s very dangerous.
A. too young to go B. too young go C. young enough to go D. young enough going 答案:B 我选A
31. My grandparents have developed a habit of taking a walk in Zhongshan Park every Saturday afternoon _______ it rains.
A. except that B. except for C. except when D. except 答案:C 我选A
35. It was at that moment ______ he realized ______ a serious situation he was in.
A. when, what B. then, how C. before, that D. that, what 答案:D 我选B