2. 外语
  3. We consider it necessary that__________(应调整仪器)each time it used.

We consider it necessary that__________(应调整仪器)each time it used.

admin2009-04-23  25
问题 We consider it necessary that__________(应调整仪器)each time it used.
选项
答案the instrument should be adjusted
解析 考查点：虚拟语气，necessary后面跟that从句，从句要用虚拟语气，仪器和调控之间的逻辑关系是被动关系，要用被动语态。
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大学英语四级

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