A. ashamed B. just now C. be full of D. insist A. memorize B. estimate C. silt D. soft drink A. sleep B. fall away C. migration D. concrete A. prehistoric B. listen to C. tug of war D. till now A. cut short B. fanatical C. sphere D. come up with A. immortal B. avenue C. open up D. on holiday A. rarity B. span C. bag D. hide-and-seek A. easygoing B. cut off C. scientist D. attach A. arbitrary B. change into C. opera house D. oddly A. episode B. peculiar C. eat breakfast D. drop