20. A. excited B. satisfied C. think D. Laugh
19. A.if B. for C.while D. although
18. A.shock B.wonder C. worry D. pleasure
17. A. People B. Nobody C. Somebody D.I
16. A.loud B.fast C. publicly D.calmly
15.A.written B.graded C. collected D.signed
14.A.give up B.continue C. hand in D.delay
13.A.time B.excuse C.way D.idea
12.A.However B.Therefore C.As for him D.Except for that
11.A.work B.story C.luck D.joy