A. Tuesday B. cave C. importantly D. calcium A. location B. lifelong C. customs D. take notice of A. litter B. Japanese C. off D. breakthrough A. interpreter B. lie C. Mr. D. bedtime A. biochemist B. turn to C. Chinese paper-cutting D. oceanarium A. homework B. clock C. storey D. step A. ageing B. trifling C. generally speaking D. dragon dance A. potato B. service C. finally D. composer A. successful B. dialect C. similarity D. raising A. approval B. neat C. underground D. arouse