单项选择题

The whole path ______ electricity travels is known as a circuit.

A．which
B．along which
C．along with
D．in that
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单项选择题
My uncle, as well as his three children, ______ the competition.
A．have joined
B．have joined in
C．has joined in
D．has been joined in
单项选择题
Even after he ______ as the most valuable employee, he could not gather enough courage to ask his boss for a raise.
A．will be named
B．had been named
C．is named
D．has been named
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