单项选择题

All ______ is an adequate supply to meet the demand.

A．needed
B．the things needed
C．that needed
D．what is needed
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单项选择题
From the passage, we can infer that popular words are ()

A．essential to daily life
B．not regular in usage
C．convenient to use
D．not*standard enough to be used
单项选择题
According to the passage, both popular words and learned words ()

A．seem to be of no use
B．can help people to get a better comprehension of the language.
C．are easy to master
D．have gone beyond our mother’s reach
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