19.A: All the flights for Hong Kong tomorrow are full. We have to change our travel schedule.
(A)It’s too bad to hear that you have a flu.
(B)It was my fault that I forgot to reconfirm the bookings.
(C)I am sorry that you can’t exchange money here.
(D)No, I shall be late for the flight.
20.A: Can’t you meet me later this afternoon to talk about our investment project?
(A)No, I don’t like to buy any vase.
(B)Yes, of course I can. When?
(C)Yes, I can’t because I have no time.
(D)Yes, I can write you a letter.
21.A: Where are you now? I have been waiting for you in the park for one hour already!
(A)I am stuck in a traffic jam.
(B)There is a parking lot close to my house.
(C)I visited the museum in that park two years ago.
(D)Yes, I am having my lunch now.
22.A: I have put on some weight in the last three months.
(A)Yes, it’s cold today. You really should put on more clothes.
(B)Can I keep a pet?
(C)No, you shouldn’t go abroad.
(D)If you take up exercising, you may be able to lose that.
23.A: That chair is in the way. Could you please move it?
(A)Yes, I could buy one on my way home.
(B)Yes, I am moved.
(C)Yes, I could of course do that.
(D)No, it is never too late to learn.
24.A: I came across my old classmate in town yesterday.
(A)You should be careful when you cross the street.
(B)Did you remember his name?
(C)Do you need me to lend you a book?
(D)Did you need a driver’s license?