— Can you stay here longer?

— _________． But I have to be back tomorrow．

A．I’d love to                                B．I’m afraid not 

C．I’m sorry, I can’t                     D．No, thank you

---Can you stay here longer?

---______, but I have to be back tomorrow．

1. A.
   No problem
2. B.
   I'm afraid not
3. C.
   I'd love to
4. D.
   No, thank you

---Can you stay here longer?
---     , but I have to be back tomorrow.