早教吧 育儿知识 作业答案 考试题库 百科 知识分享

ontheprojectfor10yearsk,hestillfeltithardtomakeanyachivement.A.HeworksBHavingworkedC.HehaveingworkedD.working

题目详情
____on the project for 10 yearsk,he still felt it hard to make any achivement.
A.He works
B Having worked
C.He haveing worked
D.working
▼优质解答
答案和解析
选B 状语从句.A,C中有主语排除,原意是已经工作,所以排除选项D .最后选B,虽然他十年来一直做这个工程,但是他仍然感到难以取得任何进展.