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The average age at which people begin to need eyeglasses vary considerably.A、var
The average age at which people begin to need eyeglasses vary considerably.A、var
游客
2025-02-02
16
管理
问题
The average age at which people begin to need eyeglasses vary considerably.
选项
A、varies
B、is varied
C、will vary
D、has been varied
答案
A
解析
结构应用主句主语为the average age，是单数，应用一般现在时的第三人称单数形式，因此A为答案。
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