4.Be careful, or you'll make a mistake.
→ If you are not careful, you will make a mistake.
5.Don't skip breakfast, or you'll feel tired.
→ If you skip breakfast, you will feel tired.
6.Save money, or you won't be able to buy a new phone
→ If you don't save money, you won't be able to buy a new phone.
7.Don't leave the door unlocked, or someone will break in.
→ If you leave the door unlocked, someone will break in.
8.Work hard, or you won't succeed.
→ If you don't work hard, you won't succeed.
9.Drive carefully, or you'll have an accident.
→ If you don't drive carefully, you will have an accident.
11.Follow the instructions, or the experiment will fail.
→ If you don't follow the instructions, the experiment will fail.
11.Don't eat too much, or you'll get a stomachache.
→ If you eat too much, you will get a stomachache.
12.Take an umbrella, or you'll get wet.
→ If you don't take an umbrella, you will get wet.
13.Don't waste time, or you won't finish your work.
→ If you waste time, you won't finish your work.
14.Study English every day, or you won't improve.
→ If you don't study English every day, you won't improve.
15.Don't forget the deadline, or you'll lose marks.
→ If you forget the deadline, you will lose marks.
16.Apologize, or she won't forgive you
→ If you don't apologize, she won't forgive you.
17.Be on time, or you'll miss the bus.
→ If you are not on time, you will miss the bus
18.Don't touch the stove, or you'll burn yourself.
→ If you touch the stove, you'll burn yourself.
19.Prepare well, or you won't do well in the interview.
→ If you don't prepare well, you won't do well in the interview.
20.Practice regularly, or you won't improve your skills.
→ If you don't practice regularly, you won't improve your skills.
