2. 外语
  3. Loudspeakers were fixed in the hall so that everyone _______ an opportunity to hear the speech.

Loudspeakers were fixed in the hall so that everyone _______ an opportunity to hear the speech.

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问题 Loudspeakers were fixed in the hall so that everyone _______ an opportunity to hear the speech.
选项 A、ought to have
B、must have
C、may have
D、should have
答案D
解析 so that引导的目的状语从句，从句中常用may。但是本句主句用的是过去时态，所以从句；也应该用相应的表示过去的时态，只有should have符合要求。
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