单选题 Don't {{U}}refuse{{/U}} to let me know if there is anything I can do for you.
  • A. turn down
  • B. reflect
  • C. joy
  • D. wait
【正确答案】 A
【答案解析】[解析] 本题考查动词与动词短语。划线单词refuse的意思是“拒绝”，与turn down的意思相同，故本题选A。