Dưới đây là đáp án cho các câu điều kiện:

1. If she *reads* in bad light, she will ruin her eyes.
2. If I find your book, I *will phone* you at once.
3. I will get angry if you *make* more mistakes.
4. If you don't believe what I said, *ask* your father.
5. If I study hard, I *will pass* this year's exam.
6. If the weather is fine, we *will go* on a picnic.
7. If I *go* to Paris, I will visit the Eiffel Tower.
8. If they don't invite me, I *won't go*.
9. If he *gets* my email, he will send the information we need.
10. If she travels to London, she *will visit* the museums.
11. If I *get* the money, I will buy a mobile phone.
12. If you make trouble, I *will send* you to the principal.
13. If I *have* enough time this evening, I will watch a movie.
14. If he has money, he *will lend* me what I need.
15. If you *eat* greasy food, you will become fat.
16. If your sister goes to Paris, she *will have* a good time.
17. If he *does* that, he will be sorry.
18. If I leave now, I *will arrive* in New York by 8:00 pm.
19. You *won't do well* on your test if you don't study.
20. They won't know the truth if you *don't tell* them.
21. If I bake a cake, *will you* have some?
22. If he *calls* you, will you answer the phone?
23. If you don't go to the party, I *will be* very upset.
24. If you get a haircut, you *will look* much better.

Trong các câu điều kiện loại 1 (điều kiện có thể xảy ra trong tương lai), chúng ta thường sử dụng hiện tại đơn trong mệnh đề điều kiện và tương lai đơn trong mệnh đề chính.

If she reads in bad light, she will ruin her eyes.
If I find your book, I will phone you at once.
I will get angry if you make more mistakes.
If you don't believe what I said, ask your father.
If I study hard, I will pass this year's exam.
If the weather is fine, we will go on a picnic.
If I go to Paris, I will visit the Eiffel Tower.
If they don't invite me, I won't go.
If he gets my email, he will send the information we need.
If she travels to London, she will visit the museums.
If I get the money, I will buy a mobile phone.
If you make trouble, I will send you to the principal.
If I have enough time this evening, I will watch a movie.
If he has money, he will lend me what I need.
If you eat greasy food, you will become fat.
If your sister goes to Paris, she will have a good time.
If he does that, he will be sorry.
If I leave now, I will arrive in New York by 8:00 pm.
You won't do well on your test if you don't study.
They won't know the truth if you don't tell them.
If I bake a cake, will you have some?
If he calls you, will you answer the phone?
If you don't go to the party, I will be very upset.
If you get a haircut, you will look much better.