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

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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

（）such a good chance, he planned to learn more.

A．To be given
B．Having been given
C．Having given
D．Giving