U.S.News____________rankingsofcollegessince1983.Theyareaverypopularresourceforstudentslookingtoapplytouniversitycampus.
A、maintainsD
暂无解析
Ilongtoalleviate__________,butIcannot.
The Bent Pyramid outside Cairo __________ ancient Egypt ’s first attempt to build a smooth-sided pyramid.
_____ for the fact that she broke her leg, she might have passed the exam.
Ifasubstanceisdissolvedinwaterorheated，itmay（）agas.
_____ him tomorrow.
