There was no sign _______ they had died from diseases such as bird flu – the main worry in such cases. Among the theories was _______ a truck had collided（碰撞）with the crowd.

Happy New Year ，Kitty! — __________

给下面语句排序，衔接恰当的一项是（ ）①因为较弱的电磁辐射，也会对人的神经系统与心血管系统产生一定的干扰。②人的大脑和神经会产生微弱的电磁波，当周围电器发出比它强数百万倍的电磁波时，人的神经活动就会受到严重干扰。③即使在不太强的电磁波环境中工作和生活，人也会受到影响。④如果长时间处于这种强电磁波的环境中，人会出现头痛，注意力不集中、嗜睡等症状，强电磁辐射会使心血管疾病加重、神经系统功能失调。

The new clock is so nice. Could you tell me______

Don’t be late for school next time, ______? —______.