单项选择题

______ in debt to anyone, Tony is very careful about the loans.

A．Never has been
B．Having never been
C．Never being
D．Never having been
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单项选择题
The standard of living of any country means the average person's ______ of the goods and services which the country produces.
A．amount
B．number
C．share
D．range
单项选择题
A．processB．courseC．actionD．method
A．process
B．course
C．action
D．method
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