1- If you don’t study hard, you won’t pass the exam 
Unless you ____________________________________________________
2- Unless Hoa pays my book to me, I will never borrow  her again 
If Hoa ____________________________________________________
3- They will lose their work they don’t work hard
Unless they ___________________________________________________
4- We can not find her house unless we use the compass
If we ___________________________________________________________
5- If Nam isn’t sick, He will go camping 
Unless Nam ______________________________________________________
6- We will have  bread for lunch. We will be hungry.
If We _____________________________________________________________
7- Take up this course or You will like it .
If you _________________________________________________________
8- Stay here or you will be safe.
If you ___________________________________________________________
9- We will miss the bus If we do not go now
Unless We _______________________________________________________
10- Eat an apple every day , and you will be healthier
If You ___________________________________________________________

11- The weather is bad , so we can not go picic.
If ___________________________________________________________
12-  She fails the exam because She doesn’t study hard.
If ____________________________________________________________
13- I am  tired, so I go to bed early 
If____________________________________________________________
14- I don’t have time, so I can not complete  this exercise.
If ____________________________________________________________
15- they don’t play in our football team because They are  older
If They ______________________________________________________
16- Mai is not my friend, so  I don’t invite her  to my birthday party.
If __________________________________________________________
17- I don’t tell my mother the truth. She is very bored now. 
If ________________________________________________________
18-  Minh  doesn’t do any exercise, so He is fat.
If _________________________________________________________
19- We are poor, so  We can’t give him money
If we _______________________________________________________
20- I am fat  because I eat too much fast food.
→ If I ______________________________________________