英语难题5(请从语法角度详解)非常感谢~
41.themeetingroomoughttobemade______allthetime.
A.cleansB.tocleanC.cleaningD.clean
47.hewascertainthathehadlostthekeytothebike_____intheoffice_____attheschoolgate.
A.both…andB.notonly…butalsoC.neither…norD.either…or
48.Ihopemychild_______giveyouanytrouble.
A.notB.nottoC.won’tD.don’t