-Don't step on the grass next time, Mike.

         -_______.

A. Is that so?           B. Don't worry.         C. I don't know.        D. Sorry, I won't

---Don’t step on the grass next time, Mike. 

  --- ___________

  A. Is that so?        B.   Don’t worry.     C. I don’t know. D. Sorry, I won’t.

---Don’t step on the grass next time, Mike. 

--- ___________

1. A.
   Is that so?
2. B.
   Don’t worry.
3. C.
   I don’t know.
4. D.
   Sorry, I won’t.

---Don't step on the grass next time, Mike.
---_______.

1. A.
   Is that so?
2. B.
   Don't worry
3. C.
   I don't know
4. D.
   Sorry, I won't