A. rarity B. measles C. agriculture D. have a cold A. employee B. cleverly C. certainly D. how long A. rest B. entertainment C. rent D. rich A. drunk B. imaginary C. doctor D. unforgettable A. paradox B. hero C. sprained D. dentist A. explore B. come into being C. the Great Wall D. headache A. better B. have pity on C. transportation D. rely on A. must B. perhaps C. woke D. drainage A. effortlessly B. work of art C. earache D. constitute A. office B. photographer C. exist D. tongue