A. billy-goat B. corporation C. word D. tidy the desk A. pig B. emperor C. jigsaw D. worship A. at the age of B. route C. be born D. offender A. photo album B. have a headache C. ransom D. be good at A. stay up late B. calculator C. perform D. neurotoxic A. ignoble B. involve C. disco D. sing A. ping-pong B. unconscious C. squeeze D. air-conditioned A. quantity B. ballet C. milometer D. song A. try one's best B. improve C. horror film D. mean A. in font of B. in half C. climb D. Tuesday