Question

--- ______?
--- He wants to be a teacher.

1. A.
   What is Jim going to be when he grow up
2. B.
   What did Jim do when he grows up
3. C.
   What’ s Jim going to be when he grows up
4. D.
   What’s Jim when he grow up

Answer 1

C
本题选项中when引导的从句主语为he，动词应用单数第三人称grows，故本题不选AD，本题谈论的是未来的打算，故不选B，只能选C。