题目内容

It is not polite to __________somebody when he or she is talking on the phone.

A. apologise to
B. contribute to
C. disturb
D. dispose

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You should always aplogize if you _______somebody.

A. talk to
B. speak to
C. interrupt
D. complain to

When you are talking on the telephone, ______________in your voice.

A. higher
B. deeper
C. lower
D. lighten

Show respect for your colleague's workplace and _______ when you enter somebody's office.

A. be careful
B. knock
C. disturb
D. be aware

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