A. art form B. member C. impressive D. temperature A. go back B. per C. determine D. impatient A. spoke B. invariably C. imperceptible D. DVD A. performer B. ash C. improbable D. heretic A. impact B. critically C. ordinary D. Mercury A. importantly B. ground C. light-colored D. nonsense A. weekly B. risk C. original D. importance A. reach B. disappearance C. just a moment D. impress A. ceremony B. impossible C. balance D. folk A. important B. skip C. a lot of D. pad