单选题：Loudspeakers were fixed in the hail so that everyone __ an o

题目内容：

Loudspeakers were fixed in the hail so that everyone __ an opportunity to hear the speech. A．ought to have
B．must have
C．may have
D．Should have

参考答案：

答案解析：

Which of the following is NOT true about the author's family

Which of the following is NOT true about the author's family?A．He came from a mi

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