Though Sam’s paper has been revised more than once, his adviser
分类: 综合英语（一）(00794)发布时间: 2024-08-22 03:59浏览量: 0
Though Sam’s paper has been revised more than once, his adviser still thinks that the paper needs ________. A、to improve B、improving C、improved D、to have improved 【正确答案】：B 【题目解析】：need doing=need to be done。符合句意。