Exercise 1. Write the correct form of each verb in brackets. 1. If it (be) sunny next week, we (plant) the vegetables. 2. If we (recycle) more, we (help) our Earth. 3. We (save) a lot of trees if we (not waste) so much paper. 4. More people (have) fresh water if we only (use) the water we 5. If the river (not be) dirty, there (be) more fish. 6. If the Earth (be) warmer, the sea level (rise) 7. If the sea level (rise) , some countries (disappear) 8. If we (reduce) soil pollution, we (have) enough food to eat. 9. If we (not have) enough food, we (be) hungry. 10. If we (be) hungry, we (be) tired.

Question

Exercise 1. Write the correct form of each verb in brackets. 1. If it (be) sunny next week, we (plant) the vegetables. 2. If we (recycle) more, we (help) our Earth. 3. We (save) a lot of trees if we (not waste) so much paper. 4. More people (have) fresh water if we only (use) the water we 5. If the river (not be) dirty, there (be) more fish. 6. If the Earth (be) warmer, the sea level (rise) 7. If the sea level (rise) , some countries (disappear) 8. If we (reduce) soil pollution, we (have) enough food to eat. 9. If we (not have) enough food, we (be) hungry. 10. If we (be) hungry, we (be) tired.

Answer 1

1.is - will plant2.recycle - will help3.will save - don't waste4.will have - use5. isn't - will be6. is - will rise7.rises - will disappear8.reduce - will have9. don't have - will be10.are - will be - Câu điều kiện loại 1- If + S + V(s/es) + O , S + will + V nguyên + O - S + will + V nguyên + if + S + V(s/es) + O - Unless = If ... not- Diễn tả giả thiết có thể xảy ra ở hiện tại hoặc tương lai Thì Tương Lai Đơn : +) S + will + V nguyên + O -) S + won't + V nguyên + O?) Will + S + V nguyên + O ? Thì Hiện Tại Đơn : Động từ tobe : I + am , he/she/it + is , we/you/they + are+) S + is/am/are + ...-) S + is/am/are + not + ... ?) Is/am/are + S + ... ? Động từ thường :+) S + V(s/es) + O -) S + don't/doesn't + V nguyên + O ?) Do/does + S + V nguyên + O ?

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