--- Daddy, I don’t want to go to Jimmy’s birthday.

   --- You had better go. ____ you make a promise, you have to keep it.

A. Once                       B. Even if            C. Unless                   D. In case

--- Daddy, I don’t want to go to Jimmy’s birthday.
--- You had better go. ____ you make a promise, you have to keep it

1. A.
   Once
2. B.
   Even if
3. C.
   Unless
4. D.
   In case

--Daddy, I don't want to go to Jimmy's birthday.

   --- You had better go.________ you make a promise, you have to keep it.

  A. Unless                  B. Even if                    C. In case                   D. Once