Iamsorry的精选

问题详情：Iamsorry______writtenyoualetteratthetime.A.tohavenotB.tonothaveC.nottohaveD.nothaving【回答】C知识点：非谓语动词题型：选择题...

问题详情：一CanIspeaktoMr．Black?   —Iamsorry，buthe________NewYorkforanimportantinternationalmeeting．   A．hasbeento    B．hasgoneto   C．hasbeenin    D．hasgonein【回答】B    知识点：动词时态题...