Question

Use conditionals to give warnings in three ways .
Ex: 1. If you (not/be) careful with that knife , you (cut) yourself .
If you aren't careful wiyh that knife , you'll cut yourself .
Unless you're careful with than knife , you'll cut yourself .
Be careful with that knife or you'll cut yourself .
2. If you (not/luck) your car ,someone (steal) your radio .
3. If you (not/write ) down the number , you (not/remember) it .
4.If you (not/go away ), I (call) the police .
5.If you (not/be) early ,you (not/get)good seats near the front .

Answer 1

2.
If you don't lock your car, someone will steal your radio. 
Unless you lock your car, someone will steal your radio.
Lock your car or someone will steal your radio. 

3.
If you don't write down the number, you won't remember it. 
Unless you write down your number, you won't remember it. 
Write down your number or you won't remember it. 

4. 
If you don't go away, I'll call the police. 
Unless you go away, I'll call the police. 
Go away or I'll call the police. 

5.
If you aren't early, you won't get good seats near the front. 
Unless you're early, you won't get good seats near the front. 
Be early or you won't get good seats near the front.