【简答题】O2O英文全称是( ),中文意思是指( )
【单选题】当出现后牙早接触,前牙开拾、侧猞运动受限时表示
【简答题】When he heard the news that his father died, he stood ___________________(好像被钉在地上一样).
【单选题】When he heard that his parents had been seriously ______ in the traffic accident, he burst into tears.
【单选题】When he heard from the hospital that his father had died, he ______into tears.
【简答题】His face______(dark)with anger when he heard the bad news.