Fill in the blanks with "if" or "unless"

Exercise 6. Fill in the blanks with "if" or "unless".
1.
it's raining heavily, we won't go for a dogsled.
he tries hard, he won't pass the examination.
2.
3. I will try "curry"______________
4.
I have an opportunity to travel to India.
I finish the work in time, I will go to the Iditarod Trail Sled Dog Race.
you see Mary today, please ask her to call me.
5.
6. I will cook some pasta for my children
7.
8.
9.
they are hungry.
Jane gets to Taiwan, she will eat dim sum.
you can eat chillies, you won't like Thai cuisine.
you have free time this weekend, I will show you around Chau An
Village.
10. You will put on weight
you do morning exercises.