Kết hợp câu dùng câu điều kiện

Giúp mình với ạ gấp

Kết hợp câu dùng câu điều kiện
Question 1.
I can't play football this afternoon because I felt tired. → If   .
Question 2.
Don’t tell lies to your boss or you'll be fired at once. → If   .
Question 3.
She walked to the meeting. She was late. → If   .
Question 4.
She is lazy so she can't pass the exam. → If   .
Question 5.
Leave me alone or I'll call the police. → If   .
Question 6.
He didn't revise all his lessons, so he failed the exam. → Had   .
Question 7.
If you arrive at the office earlier than I do, please turn on the air-conditioner. → Should   .
Question 8.
He will pay me tonight; I will have enough money to buy a car. → If   .
Question 9.
The car breaks down so often because you don't take good care of it. → Were you   .
Question 10.
He can't go out because he has to study for his exam. → If   .
Question 11.
Rita is exhausted today because she didn't get any sleep last night. →If   .
Question 12.
Martin failed his driving test last week because he was very nervous. → But for   .
Question 13.
Olga and Ivan weren't paying attention, so they didn't see the sign marking their exit from the highway. → If   .
Question 14.
She can't be employed because she doesn't have a college degree. → She   .
Question 15.
Unless you promise to return back, I won't lend you. → If   .
Question 16.
Sally doesn't know what she has to do for homework because she was absent from school on Friday. → Sally   .
Question 17.
He died so young; otherwise, he would be a famous musician by now. → Had it   .
Question 18.
He smokes too much; that's why he can't get rid of his cough. → If   .
Question 19.
We put off our trip because the weather was terrible. → We   .
Question 20.
If you do not like this one, I'll bring you another. → Unless   .