1. They can't travel abroad next month unless they renew their passport.
Unless: trừ khi
Unless là phủ định của if ( trong câu này là ĐK loại 1 )
2. If I were you, I would drive carefully.
Cấu trúc câu ĐK loại 2:
If + S + V<QK>, S + Would/could/… + V_inf
Câu trên là câu ĐK đặc biệt: Dùng If I were you, S + Would/could/… + V_inf ⇒ Khuyên bảo
3. Had the burglar alarm gone off, the burglars wouldn't have broken into my house.
Cấu trúc câu ĐK loại 3: If + S + Had + V(pp)/Ved, S + would/ could…+ have + V(pp)/Ved
Đảo ngữ : Had + S +V(pp)/Ved, S + would/ could…+ have + V(pp)/Ved
⇒ Đảo had lên đầu, bỏ if
4. Unless you have a driving license, you can't hire a car.
Giải thích Câu 1
5. Provided that he didn't hear that his flight was boarding, he missed the plane.
Provided that = because<giống cả cấu trúc>
6. As long as you promise to take good care of my bike, you can borrow it.
as long as: miễn là
CHÚC CẬU HỌC TỐT :))