题目内容
2.(2015 上海,39 Martin was so busy the old that he gave up his parttime job.
A. helping B. helped C. to help D. help
练习册系列答案
相关题目
题目内容
2.(2015 上海,39 Martin was so busy the old that he gave up his parttime job.
A. helping B. helped C. to help D. help