—Can I park my car here?  

—Sorry ! You        do it. No parking is allowed here.[ ]

A. may not            

B. don't        

C. won't                  

D. mustn't

- Thank you very much for the beautiful present. 

-_____________        [ ]

A.  Don't say that.                  

B.  I think so.        

C.  I am glad you like it.            

D.  OK.