单项选择题

Vegetables sold at this shop ______usually fresh and cheap.

A．is
B．are
C．do
D．does
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单项选择题
They won't get there______ next Tuesday.
A．on
B．until
C．since
D．in
单项选择题
Several of the washing machines are out of order and they______
A．need repairing
B．need to repair
C．are needed to be repaired
D．require to repair
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