1. If it (rain) tomorrow, we (stay) at home and watch the flowers from the window. 2. If the sun (shine), we (go) to the park for a picnic. 3. If you (plant) these seeds now, they (grow) by late spring. 4. If the weather (be) warm, we (have) lunch in the garden. 5. If she (not water) the plants, they (die). 6. If we (see) bees in the garden, we (know) it is really spring. 7. If he (wear) a light jacket, he (not feel) too hot. 8. If the flowers (bloom), the park (look) beautiful. 9. If they (go) hiking this weekend, they (enjoy) the fresh air. 10. If you (leave) the window open, the birds (sing) loudly in the morning. 11. If it (not rain) this week, the grass (become) dry. 12. If we (ride) our bikes, we (see) many spring landscapes. 13. If she (pick) the flowers, she (make) a nice bouquet. 14. If the temperature (rise), people (start) wearing lighter clothes. 15. If you (visit) the countryside, you (see) many baby animals. 16. If the days (get) longer, we (have) more time outside. 17. If he (forget) his umbrella, he (get) wet. 18. If we (have) a barbecue, we (invite) our friends. 19. If the wind (blow), the trees (move) in the breeze. 20. If she (take) photos of the flowers, she (share) them online.

Решение:

1. If it rains tomorrow, we will stay at home and watch the flowers from the window.

2. If the sun shines, we will go to the park for a picnic.

3. If you plant these seeds now, they will grow by late spring.

4. If the weather is warm, we will have lunch in the garden.

5. If she does not water the plants, they will die.

6. If we see bees in the garden, we will know it is really spring.

7. If he wears a light jacket, he will not feel too hot.

8. If the flowers bloom, the park will look beautiful.

9. If they go hiking this weekend, they will enjoy the fresh air.

10. If you leave the window open, the birds will sing loudly in the morning.

11. If it does not rain this week, the grass will become dry.

12. If we ride our bikes, we will see many spring landscapes.

13. If she picks the flowers, she will make a nice bouquet.

14. If the temperature rises, people will start wearing lighter clothes.

15. If you visit the countryside, you will see many baby animals.

16. If the days get longer, we will have more time outside.

17. If he forgets his umbrella, he will get wet.

18. If we have a barbecue, we will invite our friends.

19. If the wind blows, the trees will move in the breeze.

20. If she takes photos of the flowers, she will share them online.