WHICH OF THE FOLLOWING IS THE MAIN TOPIC OF THE PASSAGE

70.Which of the following is the main topic of the passage?

A. The failure of telecommuting

B. The advantages of telecommuting

C. A definition of telecommuting

D. An overview of telecommuting

IX. Choose the word or phrase (A, B, C or D) that best fits the blank space in the following

passage.

Face-to-face conversation is a two-way process: You speak to me, I reply to you and

__(71)__. Two-way __(72)__ depends on having a coding system that is understood by

both sender and __(73)__, and an agreed convention about signalling the beginning and end

of the message. In speech, the coding system is the language __(74)__ English or Spanish;

the convention that one person speaks at __(75)__ time may seem too obvious to __(76)__

In fact, the signals __(77)__ in conversations and meetings are often __(78)__ For example,

lowering the pitch of the voice may mean the end of a sentence; a sharp intake of breath

may signal the desire to __(79)__, catching the chairman's eye may indicate the desire to

speak in a formal setting like a debate, a clenched fist may indicate anger. When __(80)__

visual signals are not possible, more formal signals may be needed.