35. -Why？ Where is the key to the meeting room？

-Dear me! You __________it in the taxi!

A. had never left　　 B. didn't leave　　 C. never left　　 D. haven't left

34. Carry your ___________with you-money, jewelry, cameras and so on.

A. gifts 　　　　　B. suitcase　　　　 C. bags　　　　　 D. valuabes

33. Ten minutes earlier, ___________we could have caught the first train.

A. but　　　　　 B. so　　　　　　 C. and　　　　　　 D. or

32. What a pity! I missed to meet my boss at the airport because my car was ____________in the traffic jam.

A. broken up　　　 B. kept back　　　 C. held up　　　 D. kept up