A pleasure. =My pleasure=It’s a pleasure. 意为“不用谢”,当别人表示感谢时用它来回答。
4.    【2003 北京】--- Thanks for the lovely and delicious food . 
 --- ___________ . 
A. No thanks  B. Never mind  
C. All right   D. My pleasure 
5.    【2007四川】—Thank you for joining in our conversation tonight. 
— _______ . 
A. It’s my duty         B. It’s all right     
C. It’s my pleasure    D. It’s nice to say so
Don’t 'mention it. (informal) used as a polite answer when sb. has thanked you for sth. 
‘Don’t mention it.’用法较简单,意为“不用谢”。
A:Thank you very much. 太感谢你了。
B:Don’t mention it. 别客气。
6.    “It was so kind of you to give us a lift.” “____; it was a pleasure.”
A.That’s right.    B. It doesn’t matter. 
C. Never mind.   D. Don’t mention it
 
 
 
