18..event B.loss C.action D. problem
17.A.notice B. mention C.fear D. control
16.A. but B. so C.or D.for
15.A. shop B. live C. come D. study
14.A. stand B.accept C.know D. share
13.A.townspeople B.other students C.government official D. truck drivers
12.A. effort B. time C. trouble D. noise
11.A.well B.hard C. biology D. education
10.A. tested B. meant C. kept D.used
9. A. pretty B. quiet C. large D. modern