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I don’t know who invented telephone. It’s really most useful invention.A.the; aB

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I don’t know who invented telephone. It’s really most useful invention.A.the; aB

I don’t know who invented ________ telephone. It’s really ________ most useful invention.

A.the; aB./; aC.a; theD./; the

试题答案

A

解析这题考查冠词,第一空是表示发明物,加the,第二空:a most useful是“非常有用”,这里的most相当于very。选A。