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In those days, the old woman __________ sit at the door for hours, waiting for her son to return from abroad.

In those days, the old woman ________ sit at the door for hours, waiting for her son to return from abroad.

1. A.
   could
2. B.
   should
3. C.
   might
4. D.
   would

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In those days, the old woman __________ sit at the door for hours, waiting for her son to return from abroad.

   A. should        B. used to       C. might          D. would

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In those days, the old woman __________ sit at the door for hours, waiting for her son to return from abroad.