2. 职称英语
  3. Before we left the room the chairman made sure______the lights were turned off.A

Before we left the room the chairman made sure______the lights were turned off.A

游客2025-07-23  16
问题 Before we left the room the chairman made sure______the lights were turned off.
选项 A、if
B、which
C、when
D、that
答案 D
解析 make sure表示“弄清楚”，后常接that引导的宾语从句。
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