It is necessary that everyone______a copy of this book.

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问题 It is necessary that everyone______a copy of this book.

选项 A、has
B、could have
C、will have
D、should have

答案D

解析 在It is+形容词+that结构中,that从句需用虚拟语气,所以从句中的谓语需要用(should)+动词原形,这类形容词还有important,essential,natural,advisable等,故选D。
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