A. fame B. worse C. relief D. marathon A. astronomer B. net C. commodity D. lantern A. wonder B. think over C. give birth to D. optional A. dangerous B. slogan C. come back D. Austrian A. have lunch B. juvenile C. lay D. rhythmic A. struggle B. model C. noisy D. late A. merry B. board C. on vacation D. stand for A. live B. sexual C. newspaper D. silly A. good-humouredly B. condition C. acknowledge D. toot A. harbor B. bird flu C. habitat D. keep in order