来自姜春明的问题
【帮忙一下这一题单选题.ThePrimeMinisterwalkedontotheplatformandseatedherselfinachair,_____toanswerquestions.A.hadpreparedB.beingpreparedC.preparedD.preparing】
帮忙一下这一题单选题.
ThePrimeMinisterwalkedontotheplatformandseatedherselfinachair,_____toanswerquestions.
A.hadpreparedB.beingpreparedC.preparedD.preparing
