2. 外语
  3. Until then, his family______ from him for six months.

Until then, his family______ from him for six months.

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问题 Until then, his family______ from him for six months.
选项 A、didn’ t hear
B、hasn’ t been hearing
C、hasn’ t heard
D、hadn’ t heard
答案D
解析 then那时，相当于“that time”，until then到那时为止，在那时之前，可见谓语动词只能使用过去时，B和C错误。同时可以看出本句表示的是从过去某个进修开始一直持续到then的动作，故应使用完成体。
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