Question

---Bob, it's getting cold. ______ take a jacket with you?

---All right, Daddy.

1. A.
   Why not
2. B.
   What about
3. C.
   Would you like
4. D.
   You'd better

Answer 1

A
这里表示建议，选项B后应接动词-ing形式，选项C后接动词不定式且不定式符号to不可省，故排除。D项意为“你最好……”，也可表示建议，但不用于问句中，所以不如Why not合适。