Question

---Let's go to the library, shall we?

---________?

1. A.
   No, I can't
2. B.
   Yes, I wil
3. C.
   Yes, thank you
4. D.
   No, we'd better not

Answer 1

D
A，B，C都不能回答shall we，此处D的语气比较婉转客气。