单项选择题

Questions 11 to 18 are based on the conversation you have just heard.

A．Doctor and patient.
B．passenger and bus driver,
C．Customer and merchant.
D．Boss and secretary.
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单项选择题
A．foodsB．grainsC．meatsD．fruits
A．foods
B．grains
C．meats
D．fruits
单项选择题
A．GenerallyB．SimilarlyC．ObviouslyD．Exceptionally
A．Generally
B．Similarly
C．Obviously
D．Exceptionally
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