共有10处语言错误,每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改.

增加:在缺词处加一个漏字符号(~),并在其下面写出该加的词。

删除:把多余的词用斜线(/)划掉。

修改:在错的词下划一横线,并在该词下面写出修改后的词。

注意:1）每处错误及修改均仅限一词:

2）只允许修改10处,多者(从第11处起)不计分.

    My parents and I spent half a month in New York last year. We went to there in autumn. We think it is best season to visit America. The weather is usually cool or there aren't too many tourist in October. We stayed in a hotel in the center of the city. It was conveniently as we travelled most on foot. We couldn't understand the bus routes, and my parents didn't like travelled by underground. I went to look at the places that all tourists went to see. We went shopping in Times Square and spend too much money. What we liked most were going to the theater. We don't have the chance to see so wonderful plays at home.

小华同学的家附近有一公共自行车站点，他经常骑公共自行车去上学，某一次从家到学校运动的s-t图像如图所示，则小华从家到学校的平均速度是(    )

读图回答问题。