Here are the correct answers for each question:

4. What nationality ___ she?
**D: is**

5. He’s __________.
**A: China** (assuming the context is nationality, this shouldn't be correct; ideally, it would be "Chinese" - consider if there might be better options.)

6. What would you like to be in the future? - ___ like to be a nurse.
**B: I’d**

7. ________ would you like to be a singer? - Because I want to sing many songs.
**B: Can**

8. I’d like to be a gardener because I __________ to plants trees.
**A: want**

9. Where is the art room? - It’s on the __________ floor.
**C: third**

10. My classroom is ____ the second floor.
**C: in**