1. Hurry up or we will miss the bus.
If we ………………………………………………..………………
           Unless………………………………………………………………
2. Do the test carefully or you may get bad mark.
If you ……………………………………………………………
           Unless………………………………………………………
3. Come soon or you may not meet us.
If you ………………………………………………………………
Unless………………………………………………………
4. Speak slowly or he can’t understand what you mean.
    If you…………………………………………………………………………
   Unless…………………………………………………………………………