—We're organizing a party next Saturday, and I'd like you to come.

—________！ I have another one that day. Thank you just the same.

A．Good luck 

B．What a pity

C．Never do it again 

D．Well done

—Bill, can I get you anything to drink?

—________.

A. You are welcome

B. No problem

C. I wouldn't mind a coffee

D. Doesn't matter

—Sorry, do you mind if I smoke here?

—Yes, ________.

A．you could 

B．go ahead

C．I do 

D．my pleasure

—Her father is very rich.

—________She wouldn't accept his help even if it were offered.

A. What for?                

B. So what?

C. No doubt.                 

D. No wonder.

—What's the noise? It sounds as if it comes from upstairs.

—______.It must be the window­cleaner working next door.

A. I'm not sure           

B. I hope not

C. I'd rather not         

D. I don't think so

—According to my grandma，it is a good idea to eat chicken soup when you have a cold.

—________，scientists agree with her.

A. Sooner or later        

B. Once in a while

C. To be exact          

D. Believe it or not

—Do you think you could do without help?

—________. This is not the first time for me.

A. Take care 

B. Hurry up

C. Not exactly  

D. Don't worry

—Here's your change.

—________.

A. Thank you. 

B. Don't mention it.

C. No problem. 

D. With pleasure.

—Can I help you? Are you looking for anything in particular today?

—________We're just looking.

A. Yes, please 

B. No, thank you

C. Yes, you can 

D. No, you needn't

—I have tried very hard to find a solution to the problem，but in vain.

—Why not consult with Frank? You see，________.

A. great minds think alike

B. two heads are better than one

C. a bird in the hand is worth two in the bush

D. it's better to think twice before doing something