A. simplify B. medicine C. pen D. once A. imprison B. Holland C. Mercury D. look out for A. wham B. foreman C. sensitive D. octopus A. susceptible B. premium C. fiction D. north-east A. here you are B. knee C. petrify D. diver A. bactericidal B. proceed C. would rather D. co-founder A. road B. snail C. electronic D. lollipop A. frown B. knock on the door C. burning D. reveal A. zoo B. information C. Spring Festival D. vivid A. indigo B. Mr. C. blank D. hit