A. term B. long C. sterilize D. verse A. grandfather B. worthwhile C. nervous D. go on a picnic A. ping-pong B. light C. gesticulate D. brush one's teeth A. hall B. shut C. have difficulty doing D. unpredictable A. grandmother B. ring up C. real-life D. painting A. across the road B. turn into C. ask for help D. right A. men B. which C. taunt D. graceful A. dweller B. consult C. shoe D. standard A. sit down B. eleven C. fine D. the Yangtze River A. portfolio B. small C. in half D. acid rain