题目内容：

Error correction.

It would be difficult to imagine modern life with          1.

the telephone. It has become an useful instrument of       2.

communication, save much travel and time by making     3.

people to talk to one another over great distance.          4.

Nowadays it is as easy to talk cross a continent(大陆)      5.

or even overseas, it is to talk to one’s next-door           6.

neighbor. So, it is in emergencies                      7.

which the telephone really shows its usefulness. When     8.

there is a fire, and when someone is suddenly ill, the       9.

first thing one think of is “where is the nearest telephone?”  10.