— Thank you for your help.

— _____________

A.　That's all right　 　　　 B.　No, thanks　　　　 　　 C.　That's right　　　 　　 D. Of course

---Thank you, Mille and Kitty. It was kind of you to help me with my lessons.
---- _________.

 — Thank you, Mark.

— ____________

A. Yes, of course.               B. You’re welcome.

C. I’m sorry.                   D. Goodbye.

---Thank you，Lucy.  ---_____________.

A. I’m sorry   B. Of course  C. You are welcome  D. OK

 ---Thank you, Mille and Kitty. It was kind of you to help me with my lessons.

---- _________.

A．With pleasure.     B．Better not.         C．Of course not      D．It’s our pleasure.