I. Put the verbs in brackets into the correct tense.

  1. If he (be) ___________ late, we’ll go without him.

  2. If he (read) _____________ in bad light, he (ruin) ________________ his eyes.

  3. If they use more cars, the atmosphere (be) _______________ more polluted.

  4. We (save) _______ a lot of wood if we recycle all old newspapers and waste paper.

  5. What will he do if he (not win) ______________________ the competition ?

  6. If people (stop) ___________ using dynamite for fishing, a lot of sea creatures will be preserved.

  7. If he (not pass) __________ the driving test, we (be) ____________ disappointed.

  8. If they study hard, they (not fail) _______________ the final exam.

  9. We (live) ________________ a happier and healthier life if we keep the environment clean and unpolluted.

  10. What will you do if you (not win) _____________________ the competition ?

11. If they (build) _____________ an airport here, it (be) _____________ very noisy.

12. People (save) __________ the environment if they (reuse) ___________ old items.

13. If we (grow) __________ trees, our school (be) __________ greener.

14. If we (not have) _______________ enough food, we (be) ___________ hungry.

15. If we (be) _________ hungry, we (be) ___________ tired.