A. tour B. dry-clean C. coach D. shoal A. at an end B. diameter C. gratify D. a cup of A. great B. separate C. tissue D. decay A. basic B. moustache C. egret D. graduation ceremony A. storm B. helper C. dustbin D. reject A. relaxation B. limit C. regard D. silicon A. useless B. science fiction C. citizen D. burst A. elevator B. scientific C. apartment D. world-famous A. rediscover B. watch over C. be based on D. astonishing A. steadily B. church C. volunteer D. hand in