Help yourselves to some fish! ________.

1. A.
   Yes, I am
2. B.
   That's OK
3. C.
   Thank you
4. D.
   Yes, I do

 Help yourselves to some _______, children.

A. fish                            B. fishes                   

C. a piece of fish         D. a fish

[　　]

---Help ____ to some cakes, Jim.

---Thank you.

A. you 　　　　　　 B. your　 　　　　 C. yourself 　　　　　 D. yourselves