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8. You have to take a taxi home if you want to leave now.

   A      B       C      D

9. If anyone will phone, tell them I’ll be back at 11:00.

A B       C        D

10. We can hire a mini bus if there will be enough people.

A    B        C         D

11. If we keep on using more and more cars, we are running out of oil.

A B    C       D

12. We should reuse and recycling bottles and cans to reduce garbage.

                           A      B         C D

13. People collect the broken glass and sending it to the factories.

A B       C               D

14. If there will be too much exhaust fume in the air, our breathing will be badly affected.         A      B                 C D

15. Reusable bags are good because they make of natural materials.

A B         C   D

16. Remember to turning off the light when you go out.

                                  A       B                    C               D

17. If she throws the rubbish onto the river, all fish will die.

                    A                 B        C                                  D

18. We will save our world if we protected our environment.

                      A             B                     C          D

19. We can save money if we reduce gas, electricity but water.  

       A           B                             C                               D

20. If she be late for her English class, the teacher will be angry.

                A          B                  C                                     D

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