theteacheraskedthestudents().a.whethertheyhadeverseenthefilmavatartwomonthsago
b;thattheyhadeverseenthefilmavatartwomonthsbefore
c;iftheyhadererseenthefilmavatartwomonrhsbefore
d;whethertheyhaveeverseenthefilmavarartwomonthbefore
邮箱: 联系方式: