Type 3:
1. You couldn’t visit the USA because you didn’t get a visa.
2. I saw it with my own eyes. I believed it.
3. Bill got fired because he was too lazy.
4. Susan couldn’t cook because she felt very tired yesterday.
Giải dùm mình vớiiiii ???? cần gấp lắm lun ????????
If+ S1+ had+ PII, S2+ would+ have+ PII