2. 外语
  3. It was a long time ______ the neighbors found that the old lady had been dead of cold.

It was a long time ______ the neighbors found that the old lady had been dead of cold.

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问题 It was a long time ______ the neighbors found that the old lady had been dead of cold.
选项 A、when
B、until
C、since
D、before
答案D
解析 固定句型用法题。“It’s…before…”句型表示“…之后才…”。until表示“直到…为止”常常用在否定句型中。“It’s…since…”句型表示“自从…以来已经多长时间了”；而when表示“在…时”，不合题意。
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