1. Hoa knows the process of making pottery because she was born in Doc So craft village.
- clause+ because+clause: bởi vì

2. Many important historical documents were destroyed when the library was bombed.
- Bị động QKĐ:
S+ was/were+ V-pp+O(+by SO)

3. She knew there was something wrong as soon as she entered the room.
- as soon as: ngay khi 

4. We decided to take rooms in Longwood House even though we knew we could not afford the rent.
- decide to do sth: quyết định làm gì 
- clause+ even though+clause: Mặc dù

5. My mom instructed me through 15 stages of making a conical hat so that I could make one for me. 
- clause+ so that+clause: Để
-> Chỉ mục đích