Dùng "unless" thay cho "if" để viết lại các câu sau

Exercise 3: Use UNLESS instead of IF
EX:        If you do not study hard, you will fail the exam.
                   Unless you study hard , you will fail the exam
1.     If you do not like this one, I’ll bring you another
Unless………………………………………………
2.     If she does not hurry, she’ll be late
Unless ……………………………………………….
3.     If you are not careful, you’ll cut yourself
Unless ……………………………………………………
4.     If you did not sneezed, he wouldn’t knew that we were there.
Unless ……………………………………………………