Correct the mistake: "If I was late to my lesson, the teacher gets angry."
If I AM/GET late to my lesson, the teacher gets angry.
Correct the mistake: "The soccer match will being canceled if the weather is bad."
The soccer match will BE canceled if the weather is bad.
Rewrite the sentence: "You can borrow my car, but only if you promise to be careful." (as long as)
You can borrow my car AS LONG AS you promise to be careful.
Correct the mistake: "You’ll do better in your exams, if you study hard."
COMMA
Rewrite the sentence: "Please call me if you get this message." (as soon as)
Please call me AS SOON AS you get this message.
Correct the mistake: "If you won’t buy a ticket before you go, you won’t get a seat at the concert. "
If you DON'T buy a ticket before you go, you won’t get a seat at the concert.
Correct the mistake: "It’s dangerous to drive when it will snow hard."
It’s dangerous to drive when it SNOWS hard.
Rewrite the sentence: "You can borrow my umbrella only if you remember to return it." (as long as)
You can borrow my umbrella AS LONG AS you remember to return it.
Rewrite the sentence: "If you don’t practice every day, you won’t get better at playing the piano." (unless)
You won’t get better at playing the piano UNLESS you practice every day.
Rewrite the sentence: "You won’t get the job if you don’t practice for your interview." (UNLESS)
"You won’t get the job UNLESS you practice for your interview."