A. favourite B. refresh C. titanic D. sales assistant A. right B. some day C. You're welcome D. crayon A. mouse B. little C. What's the matter D. commission A. our B. skateboard C. all right D. Civil War A. strike B. fat C. picture D. live on A. study B. tightly C. in the end D. its A. by chance B. twenty-first C. brother D. marker A. punchline B. slippery C. minority D. four A. unexplained B. staff C. victim D. five A. throw B. hurry up C. botanical D. science