Relative clause giúp mình với đang cần gấpppp ạ

12. She joined us to the countryside last month. The air was fresh there. MEDUYEN. 13. The floor is very dirty. The maid will clean it soon. The floor is very which the maid ya'll clean soon 14. She took some medicine 3 minutes ago. She had a terrible headache then. 15. The reason was ...