The number of students in a foreign languages class ______ usually limited to no more than thirty.

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问题 The number of students in a foreign languages class ______ usually limited to no more than thirty.

选项 A、have
B、are
C、is
D、were

答案C

解析本题为语法结构题，考主谓一致。本句话的主语比较长，是 the number of students in a foreign languages class。在这个短语中，中心词是 number，而不是 students 或 class。因此，谓语动词应该选择第三人称单数形式。本句大意为：外语班的学生人数通常限制在三十人以内。

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本试题收录于：英语题库成考专升本分类