Boboften 国语站 题库 2.22W 大中小设置文字大小 问题详情: Bob often _______ two hours ________ his homework.A. spend; to do B. spends; to do C. spends; doing D. spent; doing 【回答】C知识点:动词和动词短语题型:选择题 TAG标签:Boboften #