=>

1. The villagers are trying to learn English in order that they can communicate with foreign customers.

-> in order that (chỉ mục đích: để mà)

2. After we had eaten lunch, we went to Non Nuoc marble village to buy some souvenirs.

-> after QKHT, QKĐ

3. Even though this hand-embroidered picture was expensive, we bought it.

-> even though S V: mặc dù

4. This department store is an attraction in my city because the products are of good quality.

-> because S V: bởi vì

5. This is called a Chuong conical hat since it was made in Chuong village.

-> since ~ because: vì, bởi vì