二.单项选择:(共15个小题,每小题1分,满分15分)
21. ---Waiter?
---______
--- I can’t eat this. It’s too salty.
A. Yes, sir? B. What? C. All right? D. Pardon?
22. It ____ have been Tom that parked the car here, as he is the only one with a car.
A. can B. must C. might D. will
23. Dear sir, it is so generous _____ you to share your room and food ___ me.
A. of; with B. for; with C. of; to D. for, to
24. The reason why the dinosaurs died out remains unknown. They ______ by an enormous volcanic eruption.
21. ---Waiter?
---______
--- I can’t eat this. It’s too salty.
A. Yes, sir? B. What? C. All right? D. Pardon?
22. It ____ have been Tom that parked the car here, as he is the only one with a car.
A. can B. must C. might D. will
23. Dear sir, it is so generous _____ you to share your room and food ___ me.
A. of; with B. for; with C. of; to D. for, to
24. The reason why the dinosaurs died out remains unknown. They ______ by an enormous volcanic eruption.