3. If they review the test all hard, they will do it well.
- Câu điều kiện loại 1: If+ HKĐ, TLĐ.
4. The villagers in the raged flood were evacuated to the safe place by the rescue workers last night.
- Câu bị động thì QKĐ: was/ were+ PII.
5. Aids will be provided for the homeless people by the student tomorrow.
- Câu bị động thì tương lai đơn: will be PII
6. If people didn't throw rubbish in the street, it would look attractive.
- Câu điều kiện loại 2: If+ S1+ V2/Ved, S2+ would/ could...+ PII.
7. Chess has been played for around 2 thousand years.
- Câu bị động thì hiện tại hoàn thành: has/ have+ been + PII