A.A: can you get me my pen
  B: of course
  A: thanks
c.A: what do you think about my new hair 
  B:your hair are beautiful and suitable for you
  A: thank you
A. A : Please help me !
    B : Sure, I want to help you
    A : Oh... Thank you very much
b. A : Hi friends let's help her
    B : Let's go help her
    A : Come on
c. A : What do you think of this picture?
    B : I think it's beautiful
    A : I think it too...
d. A : Sir, may I go to the toilet ?
    B : Sure
    A : Thank you sir