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题型：单选题题类：常考题难易度：容易

— Excuse me, have you seen _______ umbrella here?
— Yes. Is it _______ beautiful blue one? I saw it here just now.

A、an, the B、an, a C、the, the D、the, a

举一反三

It's good habit to exercise for everyone.

There is _______ elephant in the zoo. _______ elephant is from Africa.

— Jim took one-hour ride just now. What a short time he spent finishing such a long way!
— He is experienced rider.

There are _______minutes in _______hour.

Our small change can make ______big difference to our environment.

Mr. Smith lives on _______________ island far from the mainland.

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