A. nation B. rugged C. captain D. varied A. unless B. unite C. apparatus D. nine A. spend on B. gradually C. disbelief D. make a difference A. at that time B. disembark C. stepmother D. quarrel A. no mobile phone B. accumulate C. world-famous D. were A. vinegar B. arm C. babysit D. Canada A. the long jump B. smiling C. shot D. separate A. strawberry B. portray C. whichever D. institute A. horrible B. over there C. cut out D. brick A. carve B. unite C. learn D. mood