A. navigation B. What's worse C. exert D. blue A. comedy B. rugged C. perform D. channel A. take in B. bite C. hover-train D. never mind A. magnitude B. leader C. abnormal D. there are A. translator B. fluctuation C. impatient D. crust A. millions of B. bike C. sensation D. dine A. spacious B. tasty C. ring D. call up A. gable B. grandson C. unpredictable D. physicist A. dune B. towel C. foot D. awesome A. elevator B. cushion C. tornado D. grandchildren