－Whatareyoudoing,LiLeiandZhangPen?  －Weare

问题详情：

 －What are you doing, Li Lei and Zhang Pen? 

 －We are ________ a plan for the trip to Tibet.

      A. getting on    B. working on    C. coming on      D. working

【回答】

B

知识点：动词和动词短语

题型：选择题