我看到你的另一篇同样提问已经选出了最佳答案,但是那个答案是不完全正确的,有几个正确的地方他当成错误改了,真正的错误他又没看出来.这是我的答案,
I am glad to hear that you would（will） come to visit china in the coming summer vacation lonely(alone).I'd like to offer you some traveling tips.
First of all,you may as well to(去掉to) buy a map of the places where you'll be traveling to so that you can get familiar with the towns and the roads.Secondly,you'd better（加上not） leave your luggage taking（taken） care of by strangers.Don't leave money and other valuables in your hotel room since(while) you are not(out).Thirdly,it would be better to avoid discuss（discussing） your travel plans or other personal thing（things） with stangers.Last but not the least,you can turn to the police for help when you have an emergency.I am sure that you will enjoy myself(yourself) in China
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我看了下,那个人的错误有：
1、“ the places where you'll be traveling to”这句话是对的,他以为where用错了,其实“the place...where”这个用法完全正确.
2.“leave money and other valuables ”,他以为要把and改成or,其实这里and和or都可以,用and也绝对是对的.
3.真正错误的这一句他没有看出来,“Don't leave money and other valuables in your hotel room since you are not.”,since you are not这后半句本身就不成立,应该是“while you are out”,当你出门的时候,不要把贵重物品放酒店里.这是国外的旅馆非常常见的提示.