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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My friend John insisted that he had seen ______ alien the day before.

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some

any

 This is ______ eraser and that’s _____ ring .

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a ;a

an;a

a;an

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—Can you remember when Mr. Green left _____ city?—Sorry, I can’t. I only remember it was _____ Monday.

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the; a

the; the

a; a

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How_____interesting the book is! I do want to read it_____second time.

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/;a

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Linda is       kind girl. Everyone in our class likes her

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