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题型：单选题题类：常考题难易度：普通

数词—— 表示“几十”的复数形式

Temperatures will be in the ______ tomorrow.

A、 fourteen B、four C、fourth D、forties

举一反三

Two ____ students ____ to the opening ceremony last Friday.

_________ trees have been planted these years.

There are ____ visitors to the wetland park, and the number is becoming ______ now.

There are________ visitors to the wetland park， and the number is becoming ________now.

_______ foreigners visited our city last weekend.

They arrived in ________.

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