One or perhaps more pages ______ missing.

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问题 One or perhaps more pages ______ missing.

选项 A、is
B、are
C、has been
D、have been

答案B

解析 题干大意为:有一页或许好几页缺失。由or连接两个名词或代词做主语时,谓语应与or后面的主语相一致。
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