1 . The school is within easy walking _______(distant) of the train station. (所给词的适当形式填空)

2 . She realized that one of the greatest ______ of the internet was its ability to remove the distance that usually exists between people.

A．cases

B．engines

C．distances

D．benefits

3 . The tower can be seen from a d______________of 30 miles.(根据首字母单词拼写)

4 . You needn’t go to the railway station by taxi because it is within walking d________. It only takes five minutes to walk there.(根据首字母单词拼写)