来自宋玉刚的问题
Therearetwentystudentsinmyclassandonlyoneof___agirlA.themareB.themisC.herareD.sheis
Therearetwentystudentsinmyclassandonlyoneof___agirl
A.themareB.themisC.herareD.sheis


Therearetwentystudentsinmyclassandonlyoneof___agirlA.themareB.themisC.herareD.sheis
Therearetwentystudentsinmyclassandonlyoneof___agirl
A.themareB.themisC.herareD.sheis
onlyoneofthemisagirl