---Ihaven’tseenyouforalongtime．Whatareyoubusydoing?  --...

问题详情：

---I haven’t seen you for a long time． What are you busy doing ?

   ---I have been ______my French because I will go to work in France this summer．

      A． speeding up        B． lighting up           C． making up         D． polishing up

【回答】

D

知识点：动词

题型：选择题