单项选择题

The manager has got a good business（）so the company is doing well.

A．idea
B．sense
C．thought
D．thinking

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单项选择题

（）that they may eventually reduce the amount of labor needed on construction sites.

A．So clever are the construction robots
B．So clever the construction robots are
C．Such construction robots are clever
D．Such clever construction robots are

单项选择题

The air has leaked out of this football. Could you get it（）

A．blow
B．blowing
C．blown
D．to blow