A. titanic B. water C. see D. million A. tin B. besides C. librarian D. mankind A. till B. special C. windbreaker D. transform A. acidic B. line C. cave D. grand A. fell B. pleasant C. the D. problem A. the Mid-Autumn Festival B. addition C. naughty D. user-friendly A. tractor B. tofu C. behaviour D. difficult A. hurt B. buy C. for sale D. hang A. story B. daily life C. committee D. duchess A. a glass of B. together C. must D. cause