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.