WhenIcamethroughthecustomsattheairport,Ihadtopay________onaclockIhadbought.
ItwasthreeBritishsportsmenwho________banneddrugs.
设平面区域,则D绕y轴旋转所成旋转体体积为_____
Theassociationis________toraisingfundstohelptheblind.
She________hernervousnesstotheimportanceoftheinterview.
