3. If the test is easy, I .................. it in 15 minutes. ( d0) 4. If she ..................... a bicycle, she can’t go on a camping trip with you. ( not have) 5. If they are students, they must ......................... uniform. ( wear) 6. If they ............................ a map, they will lose their way. ( not take) 7. We will not play well if it ............................. heavily. ( rain) 8. If the rice paddies are polluted, the rice plants ........................ (Die) 9. If we ............ more trees along the streets, we will have more shade and fresh air. ( plant) 10. If we keep our environment clean, we .................. happier and healthier life. ( live) 1 1. If she .......... the bus, she will not get here on time. ( miss) 12. He will help me if he ................ the answer. ( know) 13. If I do this test, I ................ my English. ( improve) 14. If we go to London, we ............... the Tower. ( visit) 15. If they do not study harder, they .................. the exam. ( not pass) 16. For several years his ambition (be) ....................to be a pilot. 17. I (go)............. to the market with my mother yesterday.