1. Listen to the teacher carefully, or you won’t understand the lesson. -> If ……………………………………………………………………… -> Unless ………………………………………………………. 2. Unless she has a rest, she’ll have a headache. -> If …………………………………………………………………. 3. Hurry up or you will be late for school. -> If ………………………………………………………………. -> Unless ………………………………………………………… 4. If it doesn’t rain tomorrow, we will go camping. -> Unless ……………………………………………………….. 5. If he doesn’t learn hard, he will get bad marks. -> Unless ………………………………………………… 6. If the weather isn’t nice tomorrow, we won’t the trees. -> Unless ……………………………………… 7. Study harder, and you will get good marks. -> If …………………………………………… -> Unless ……………………………………. 8. Play sports regularly, and we will be healthy. -> If …………………………………………… -> Unless ……………………………………..

`-` CĐK Loại 1 :

If - clause : Thì HTĐ : S + Vs / es / không s , es

Main - clause : Thì TLĐ : S + will + V

`-` Unless `=` If not : Trừ phi

`1`.

`-` If you listen to the teacher carefully , you will understand the lesson

`-` Unless you don't listen to the teacher carefully , you will understand the lesson

`2`.If she doesn't have a rest , she'll have a headache

`3`.

`-` If you don't hurry up , you will be late for school

`-` Unless you hurry up , you will be late for school

`4`.Unless it rains tomorrow , we will go camping

`5`.Unless he learns hard , he will get bad marks

`6`.Unless the weather is nice tomorrow , we won't the trees ( Đề ??? )

`7`.

`-` If you don't study hard , you won't get good marks 

`-` Unless you study hard , you won't get good marks

`8`.

`-` If we play sports regularly , we will be healthy

`-` Unless we don't play sports regularly , we will be healthy

`\text{@ TheFox}`