A. second floor B. seventy C. the thing is D. hovercraft A. hamper B. cafe C. topography D. nationalism A. cashier B. aftershock C. be glad to D. crust A. due to B. dune C. rubbish D. bank A. rugged B. helper C. men D. inspector A. sediment B. look ahead C. crowded D. impress A. New Year B. dredge C. the United States D. triumph A. master B. pay for C. porcupine D. first aid A. skate B. serious C. frame D. expedition A. shrewd B. sensation C. spin D. whom