II. If ….. 2.Lan doesn’t study hard next semester so she will fail the exam If…………………………………………………………………………… 3. The plane can’t take off because the fog is thick -> If ………………………………………………………………… 4. I can go on a picnic because I am free today -> If ………………………………………………………………………….. 5. Today isn’t Sunday so I have to go to school ->If ……………………………………………………………… 7. Hurry up or we will be late for school -> Unless ……………………………………………………………………………………….. If we ......................................................................................................................................... 8. My mother is unhappy because I am lazy -> If …………………………………………………………………………. 9. The weather was fine so we had a wonderful holiday -> If ……………………………………………………………………………………. 11. Because he is sick, he can’t go to school -> If ………………………………………………………………………………… 12. If he doesn’t have a map, he will get lost -> Unless ………………………………………………………………………………………. 13. If Hoa didn’t get up late, she could go to the party -> Unless …………………………………………………………………………………….