Here’s how you can complete the conditional sentences:

1. You might catch a cold if you **take** a shower late at night.
2. My sister **will not make** a cake if she doesn’t have enough ingredients.
3. If you want to improve your English, you **should read** more books.
4. If you **do not follow** the road rules, you may be fined.
5. You **should take** a break from work if you feel stressed.
6. If Beth **does not stop** eating so much junk food, she won’t be slim.
7. If it isn’t hot tomorrow, we **will not go** to the beach.
8. How **will you study** online if you don’t have a computer?
9. If you don’t sleep enough, you **will feel** tired and irritable the next day.
10. She’s going to take a vacation next week if she **gets** time off work.
11. She **will leave** early if she’s finished her work.
12. If you want to pass the Entrance Test overall, you **must pass** every part of the test.

Feel free to ask if you need further help!