—Must I return the book this week?

— No, you ____. You can ____ it for 20 days.

A．mustn't: keep                          B．needn't; borrow

C．needn't; keep                          D．mustn't; borrow

—Must I return the hook tomorrow morning? —No, you _ .You can keep it longer.

A. mustn't     B. can't      C. needn't     D. couldn't

—Must I return the hook tomorrow morning?

—No, you _ .You can keep it longer.

A. mustn't　 B. can't 　　 C. needn't 　　D. couldn't

—Must I return the book to you now, Jack?

   —No, you _____. You can give me back tomorrow.

A. won’t               B. needn’t        

C. can’t               D. shouldn’t

— Must I return the book tomorrow?

— No, you ________. You can keep it for three days.

A．mustn’t          B．needn’t          C．can’t            D．may not