摘要：2．The boy with unusual face said that he had useful machine at home． A．a,a B．a,an C．an,a D．an,an

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The boy with unusual face said that he had useful machine at home．

The boy with ________ unusual face said that he had ________ useful machine at home．

A．a, a

B．a, an

C．an, a

D．an, an

The boy with ________ unusual face said that he had ________ useful machine at home．