Решение:
- 1. If people eat too much sugar, they gain weight. (Conditional 0, общее правило, факт).
- 2. When the sun sets, it gets dark quickly. (Conditional 0, общее правило, факт).
- 3. If it rains tomorrow, we will stay at home. (Conditional 1, реальное условие и его вероятный результат).
- 4. If you study hard, you will pass the test. (Conditional 1, реальное условие и его вероятный результат).
- 5. When water boils, it turns into steam. (Conditional 0, общее правило, научный факт).
Ответ: 1. eat, gain 2. sets, gets 3. rains, will stay 4. study, will pass 5. boils, turns