网址：http://m.1010jiajiao.com/timu_id_1704815[举报]
He invited me to a dance after the show _______ Christmas Eve．
A．at B．on C．in D．by
He invited me to a dance after the show____ Christmas Eve.
He invited me to a dance after the show ________ Christmas Eve.
A．at?? B．on?? C．in?? D．by
