A. Chicago B. difficult C. ring out D. Finland A. concern B. gram C. twenty-nine D. ancient A. yet B. be famous for C. radio astronomer D. unpack A. battle B. investigation C. rabbit D. newsletter A. driftnet B. accompany C. tomb D. the A. checker B. responsibility C. wearer D. orchestra A. catastrophe B. be friends with C. lean D. December A. backwards B. Army Day C. matador D. hundred A. receptionist B. best-seller C. treasure D. praise A. disillusionment B. detect C. trunk library D. remarry