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可以引导结果状语,也可以引导目的状语,本句引导的是目的状语从句。引导目的状语从句时,日常口语中可以使用“so that+主语+will,would,can,could”。正式场合中使用“so that+主语+may,might,shall,should”。should表示可能性时,指情理之中的“应当”,故D项should have正确。
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