A. twenty B. fundamentals C. attention D. goodbye A. beaver B. just right C. take D. yours sincerely A. exercise book B. ten C. surely D. skirt A. buy B. do some research C. objection D. use up A. ashtray B. collapse C. look D. upwards A. educator B. price C. whistle D. France A. mother tongue B. twelve C. cocoa D. time A. all B. skeleton C. glory D. sticky A. be occupied with B. risky C. the Spring Festival D. sale A. oppress B. afresh C. broadcast D. eighteen