单项选择题

In conversational English "is not" often ______ to "isn't", consequently, "was not" to "wasn't", "are not" to "aren't".

A．shrinks
B．compresses
C．condenses
D．contracts
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单项选择题
The scientists calculate that a cup of whole milk provides ______ more than 100 calories of energy.
A．roughly
B．adequately
C．exactly
D．barely
单项选择题
In recent years, housework that once depressed many women has been much easier by electrical ______。
A．facilities
B．appliances
C．instruments
D．equipment
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