1. Although - Because : bởi vì
2. though - because : bởi vì
3. Since - Although : mặc dù
4. As though - Though : mặc dù
5. unless - if : nếu
6. looks down on - looks up to : tôn trọng
7. While - When
- When QKĐ, QKTD
8. Because - If
- If S V(qkđ), S would(not) V