两道简单的英语选择题,求答案和解释.
1.Asaresultofthehurricane,two-thirdsofthebuildingsinthearea_______.
A.needtorepairB.needstorepairC.needsrepairingD.needrepairing
2.There'snolightoninthedormitory,theymusthavegonetoattendtheconcertbeingheldoncampus,________?
A.aren'ttheyB.mustn'ttheyC.haven'ttheyD.shouldn'tthey
求解题过程.
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