单项选择题

The gray building is where the workers live, and the white one is where the spare parts（）

A．are produced
B．are producing
C．produced
D．being produced

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单项选择题
Dr. Smith, together with his wife and two sons,（）to arrive on the evening flight.

A．are
B．are going
C．is
D．will be
单项选择题
I wish that all of us（）with my brother when he flies to the United States next week.

A．had gone
B．could go
C．will go
D．are going
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