A. stroll B. river C. information D. thick A. roadwork B. ache C. mountain D. the Antarctic A. west B. undoing C. cloud D. Army Day A. chat B. listen and do C. world D. merciful A. lake B. faith C. dig out D. procedure A. sun B. menu C. sales reps D. perfect A. be divided into B. agree with sb C. propulsion D. flower A. stone B. rarely C. digital D. keep fit A. island B. apartment C. pass away D. curiosity A. involved B. bamboo C. pleasant D. ice-skate