阅读理解。

     Halloween falls on October 31st. It is one of the most favourite holidays for children in the USA.

People dress up in costumes like a witch, a ghost or a skeleton (骷髅). The children go to houses to

say "Trick or treat!" Long ago, if a child was not good, he or she would get a trick like having a stone in

his or her bag instead of some candy. Nowadays(如今), no one gets tricks. All the children receive lots

of candy. Parties are also popular in the evening. People go to parties in costumes and play different

games. People also like listening to ghost stories and watching scary movies.

根据短文内容完成下列句子。

1. Halloween usually happens on______.

2. It is one of the most favourite holidays for children in the______.

3. The children go to houses to say______ to get some candy.

4. Nowadays, all the children ______ lots of candy.

5. The best title of this passage is ______.

东莞市城市快速轨道交通由四条线路组成，2010年3月26日上午，轨道交通R2线试验段率先破土动工，这标志着广大市民期盼已久的轨道交通开始加速建设．R2线首建工程开建石龙火车站-东莞虎门站段，其部分信息如下：

（2）目前我市城区公交车的平均行驶速度约20km/h，假设行驶线路的距离相同，乘坐城市快速轨道从石龙站-虎门站可比乘坐公交车节省多少时间？