单项选择题

Questions 17～20 are based on the following passage about the meaning of a satisfactory standard of living. You now have 20 seconds to read the questions 17～20. "Expenditure" means

A．exercise.
B．expense.
C．style.
D．cost.
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单项选择题
A．forB．fromC．toD．of
A．for
B．from
C．to
D．of
单项选择题
Shelter refers to
A．safe.
B．shell.
C．house.
D．income.
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