Question

6. I think he (come) tomorrow
7. Who (cook) breakfast in your family?
8. He (not/know) Spanish
9. Why you (smell) those flowers? They are plastic

Answer 1

6I think he will come tomorrow.
7who cooks breakfast in your family?
8he doesn't know Spanish?
9why are you smelling those flowers?
they are plastic.
в 9 предложении smell переводится-нюхать.поэтому present continuous.

Answer 2

1.Who cooks breakfast in your family?
2.He doesn't know Spanish.
3.Why you smelling those flowers?They are plastic