Complete the 12 sentences below. Choose the best answer for each one.
1If you heat ice, it ...............
Wrong!
Use "melts" because zero conditional sentences use the present simple for general truths.
2When students don't sleep enough, they often ............... tired in class.
Wrong!
Use "feel" because zero conditional sentences use the present simple for usual results.
3If I drink coffee late at night, I ............... asleep easily.
Wrong!
Use "don't fall" because the zero conditional describes a regular result in the present simple.
4Water ............... if the temperature drops below 0°C.
Wrong!
Use "freezes" because the zero conditional uses the present simple for scientific facts.
5If my phone battery is low, I ............... it before I leave home.
Wrong!
Use "charge" because the zero conditional can describe a habitual action in the present simple.
6When people ............... too fast, they sometimes make mistakes.
Wrong!
Use "work" because the zero conditional uses the present simple for things that generally happen.
7If you mix blue and yellow, you ............... green.
Wrong!
Use "get" because the zero conditional uses the present simple for general results.
8My manager gets annoyed if I ............... late for meetings.
Wrong!
Use "arrive" because the zero conditional uses the present simple in the if-clause.
9When the library ............... at 8 p.m., students go home.
Wrong!
Use "closes" because the zero conditional uses the present simple for regular events.
10If children ............... too much sugar, they often become very active.
Wrong!
Use "eat" because the zero conditional uses the present simple for common effects.
11Plants ............... if they don't get enough light.
Wrong!
Use "grow badly" because the zero conditional uses the present simple for general truths.
12When I have a lot of homework, I ............... at home on Friday night.
Wrong!
Use "stay" because the zero conditional uses the present simple for usual situations.
Answers
- If you heat ice, it melts.
- When students don’t sleep enough, they often feel tired in class.
- If I drink coffee late at night, I don’t fall asleep easily.
- Water freezes if the temperature drops below 0°C.
- If my phone battery is low, I charge it before I leave home.
- When people work too fast, they sometimes make mistakes.
- If you mix blue and yellow, you get green.
- My manager gets annoyed if I arrive late for meetings.
- When the library closes at 8 p.m., students go home.
- If children eat too much sugar, they often become very active.
- Plants grow badly if they don’t get enough light.
- When I have a lot of homework, I stay at home on Friday night.
