Câu điều kiện loại 1
Question I. Put the verbs in brackets into the correct form.
(Chia những động từ trong ngoặc đơn vào đúng hình thức).
1.If we (recycle)  ________ more, we will help the Earth.
2. Factories (not dump) ______________waste into rivers if the government fine them heavily.
3. If people travel to work by bus, there (be)  ______________fewer car fumes.
4. We (save)  ________________thousands of trees if we don’t waste paper.
5. If we use water carefully, more people (have) ______________fresh water.
6. If the factory ( continue) ________________ dumping poison into the lake, all the fish and other aquatic animals will die.
7.If we recycle more, we (help) ________________ the Earth.
8. If people (travel)________________to work by bus, there will be fewer car fumes.
9. We save thousands of trees if we (not waste)_______________don’t waste paper.
10. Factories don’t dump waste into rivers if the government ( fine) _______________ them heavily.