A. laugh B. fireman C. remain D. front A. credulous B. poem C. morning exercises D. ability A. hard-working B. put out C. after-class D. climb up A. ambulance B. wet C. get back D. less and less A. do well in B. helmet C. spacesuit D. Norway A. shatter B. ambitious C. emit D. article A. frightening B. cursed C. anybody D. pour A. need B. cloakroom C. altitude D. Yes,please A. gymnasium B. correction C. careless D. once or twice A. settle in B. stick C. ouch D. before