精选优质文档-倾情为你奉上高考单选易错题、难题、好题档案1. By the time you arrive in London, we _ in Europe for two weeks.A. shall stay B. have stayed C. will have stayed D. have been staying2. I appreciated _ the opportunity to study abroad two years ago.A. having been given B. having given C. to have been given D. to have given3. Living in the central Australian desert has its problems, _ obtaining water is not the least.A. of which B. for what C. as D. whos
