A. radiation B. pretty C. board D. high school A. architecture B. runner C. reserve D. heavy A. watermelon B. distinctive C. surf D. often A. by B. convertible C. sterilize D. glory A. send B. make progress C. handclap D. justifiably A. evidently B. us C. on vacation D. peach A. long jump B. be good at C. zigzag D. expression A. afraid B. count C. at the bottom of D. unsettle A. straightforward B. sit C. play football D. tablet A. sometimes B. psychology C. lift up D. backward