The classroom is full of laughter
i spent an hour in watching tv yesterday
he is busy doing homework as soon as he arrived at home
i feel sueprised at heard of this bad news
he went to BeiJing yesterday
英语翻译教室里充满了欢笑.我昨天花了一小时看电视.他一到家就忙着做作业.听到这个坏消息我感到很惊讶.他昨天去了北京.