Zero Conditional vs First Conditional – B1 Grammar Test
This B1 grammar test focuses on zero conditional and first conditional, two structures frequently tested in IELTS, TOEFL, and YDS, especially in questions about facts, routines, and possible future results.
Choose the correct answer.
RESULTS
#1. If you ___ ice, it melts.
#2. If it ___ tomorrow, we will stay at home.
#3. If people ___ enough water, they get sick.
#4. If I ___ enough money, I’ll buy a new laptop.
#5. If you ___ too much sugar, it is bad for your health.
#6. If she ___ late, she will miss the bus.
#7. If you ___ the button, the machine starts.
#8. If we ___ early, we will get good seats.
#9. If children ___ enough sleep, they become tired easily.
#10. If he ___ harder, he will pass the exam.
#11. If water ___ to 100°C, it boils.
#12. If you ___ this medicine, you will feel better.
#13. If the temperature ___ below zero, water freezes.
#14. If I ___ time tonight, I’ll call you.
#15. If people ___ exercise regularly, they stay healthy.
✅ Answer Key with VERY DETAILED EXPLANATIONS
🧠 IELTS · TOEFL · YDS Focused
🧠 Critical Exam Rule (READ THIS FIRST)
| Conditional | Form | Exam Logic |
|---|---|---|
| Zero Conditional | if + present, present | Facts & general truths (YDS) |
| First Conditional | if + present, will + base | Possible future results (IELTS/TOEFL) |
🚨 Important exam trap:
❌ If + will is almost always wrong in conditionals.
1. If you heat ice, it melts.
Zero conditional → scientific fact
📌 TOEFL Reading & YDS science-based sentences
2. If it rains tomorrow, we will stay at home.
First conditional → real future possibility
📌 IELTS Speaking Part 1 daily life questions
3. If people don’t drink enough water, they get sick.
General truth → zero conditional
4. If I have enough money, I’ll buy a new laptop.
Real future condition → first conditional
5. If you eat too much sugar, it is bad for your health.
Health fact → zero conditional
📌 YDS klasik yapı
6. If she is late, she will miss the bus.
Possible future result → first conditional
7. If you press the button, the machine starts.
Cause–effect rule → zero conditional
📌 IELTS Task 1 process language
8. If we arrive early, we will get good seats.
Likely future → first conditional
9. If children don’t get enough sleep, they become tired easily.
General rule → zero conditional
10. If he studies harder, he will pass the exam.
Future possibility → first conditional
11. If water heats to 100°C, it boils.
Scientific truth → zero conditional
📌 TOEFL Reading classic
12. If you take this medicine, you will feel better.
Advice + future result → first conditional
13. If the temperature falls below zero, water freezes.
Scientific rule → zero conditional
14. If I have time tonight, I’ll call you.
Real future plan → first conditional
15. If people do exercise regularly, they stay healthy.
General truth → zero conditional
📌 IELTS Writing Task 2 argument sentences
🧠 EXAM SURVIVAL SUMMARY
Use Zero Conditional when:
Talking about facts & scientific truths
Describing rules and routines
Solving YDS grammar questions
Use First Conditional when:
Talking about real future possibilities
Making plans, promises, warnings
IELTS Speaking & TOEFL Writing tasks
