A. human B. calcium C. crowded D. homestay A. a lot of B. inhabitant C. bedding D. bigger A. at the bottom of B. hot C. missing D. accuracy A. attach to B. ticket C. factory D. make effort A. so much for B. renew C. charity D. calculator A. at the top of B. clerk C. disease D. liberty A. contest B. make a mess C. educate D. spacesuit A. saga B. go cycling C. call in D. exchange A. be connected with B. indulge C. mummy D. worry A. entertainment B. wake up C. cut up D. do well in