31. ________was difficult to save 
the places and buildings _____destroying their old beauty.
| A．That…unless | B．This…except | C．It…without | D．There … except for |
--- Excuse me.
--- ______?
--- Could you tell me how I can get to the First Department?
| A．Pardon | B．Why | C．Yes | D．Please |
--- I’d like to take a week’s holiday.
--- ______; we are too busy.
| A．Don’t worry | B．Don’t mention it |
| C．Forget it | D．Pardon me |
--- I’m sorry I can’t go with you.
--- ______? Haven’t you agreed?
| A．How’s that | B．What is it |
| C．Why don’t you | D．What do you think |
-- Did you go Dutch after that meal, I mean, with the other five friends?
--- ______.
| A．Yes, they did |
| B．Yes, they paid for the meal |
| C．No, they didn’t |
| D．No, because it was my treat that day |
--- I hope you don’t mind my turning on the heater.
--- ______.
| A．Never mind | B．Yes, I won’t |
| C．That’s right | D．Not in the least |