几道高一英语期末复习题
1、Thisismyonlyrequestthattheroom___afterbeingused.
A.becleanedB.wouldbecleanedC.mustbecleaned.D.shouldclean
正确答案选A,为什么
2、___twiceayear,whetheritisacarorabusoratruck,istherulethateverydrivermustobeyinthiscity.
A.ExaminingB.ExaminedC.Beingexamined
选C,为什么不选B