The computer is ______useful tool in ______

The computer is ______useful tool in _______world today.

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an; the

a; the

the; the

a; a

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There’s ______ apple on the table. _______ apple is for my little brother.

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a; An

an; An

the; An

an; The

The man is very rich, he has __________ airplane.

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the

Mr Wang has worked as _______ English teacher for more than 10 years.

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the

Lin Shuhao ,______ NBA star , will miss _______ matches this season because of his broken leg .

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an ; the

an ; a

a ; the

the ; a

______ girl in red is ______ friend of Mary’s．

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The, the

The, a

A, a

A, the