A. credulous B. pure C. silt D. serenity A. in half B. correlate C. September D. lift A. in return B. translate into C. choice D. shock A. want B. murder C. merry D. half A. exist B. homework C. aspirin D. apple A. litter basket B. orange C. gray D. take a vacation A. sterile B. tug of war C. cake D. flush A. disk B. wine C. oilfield D. change into A. repair B. temporarily C. honey D. go up A. on the increase B. ripe C. interest D. disabled