A. stale B. originally C. clown D. put away A. stupid B. arrive in C. Mid-Autumn D. flu A. keep up B. fresh C. take out D. space flight A. take notice of B. hard C. literally D. invaluable A. guy B. vary C. can D. lift A. get used to B. on C. cheer D. door A. crater B. take the place of C. center D. fail A. indulge B. summit C. present D. health A. producer B. teapot C. paper D. keep away A. fluctuation B. yum C. favourite D. soft