Sắp xếp các từ sau thành câu hoàn chỉnh: 1. They/ cleaned/ have/ her room. 2. I wasn't/ hungry, so I/ eat anything/ did not

Sắp xếp các từ sau thành câu hoàn chỉnh:
1. They/cleaned/have/her room.
2. I wasn't/hungry, so I/eat anything/did not.
3. We/to write to each/ started/ other two years ago.
4. we/go to/must/school/on time.