单项选择题

The city postman has to go on foot, not only along streets but also up and down stairs, as many （）of flats have no lifts and no downstairs letter boxes.

A. flights
B. blocks
C. rows
D. storeys

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单项选择题
You may even become a head waiter eventually, if you have the right sort of（） and are not afraid of hard work.

A. nature
B. temper
C. personality
D. character
单项选择题
（36）（）

A. since
B. if
C. before
D. as
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