单项选择题

To communicate with the deaf, people ______.

A．have to make special efforts
B．must speak in a foreign language
C．should not smoke at all
D．use writing instead of speaking
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单项选择题
Lip-reading is difficult in that ______.
A．it needs special training and a lot of practice
B．the lip reader has to focus on the other person constantly
C．the lip reader has to give tip normal life styles
D．lip-reading disturbs the work of a heating aid
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