I. Circle the best answer. 1. We are talking about the preservation of.........................resources A. nature B. natural C. naturally D. naturalize 2. If she ....................a lot of money, she will travel abroad this summer. A. has B. have C. are D. is 3. I’m surprised ....................the air here is so fresh. A. but B. if C. that D. so 4. Is he really ..................that you can’t join in the trip with him? A. disappointing B. disappointedly C. disappointed D. disappointingly 5. The little girl laughed .....................when her mother told her a funny story. A. happy B. happiness C. unhappy D. happily 6. .....................more trees are planted, we will have more shady places. A. Unless B. If C. That D. So that 7. He is tired ....................he stayed up late watching TV. A. so B. and C. since D. but 8. That man has .................provided a picnic lunch for us. A. kind B. kindly C. kindnesst D. So 9. We should put garbage bins around here to prevent lazy students ............ throwing trash. A. from B. away C. at D. against 10. Everyone should take part ................ preventing deforestations. A. on B. at C. by D. in II. Give the correct form of the words in brackets. 11. The local authorities should.....................................anyone catching fish in this way. (prohibition) 12. She was.....................with the new decision . (disappoint) 13. I am very ................................because they use electricity to catch fish. (worry) 14. If we go on littering, the environment .........................................(become) seriously polluted. 15. He will be late for the meeting if he .....................................(not hurry)