A. institution B. complicated C. count D. Easter A. be good at B. down C. hippo D. environment A. drought B. recycling C. misty D. anything A. grave B. yawn C. have a good time D. Forbidden City A. sheriff B. mean C. stalactite D. whether A. thorough B. pig C. icy D. Turkish A. at the age of B. middle C. budding D. addicted A. conceal B. disco C. younger D. sedulously A. silicon B. ballet C. gale D. woodcutter A. howl B. perform C. sterilize D. ad