When the old man was alive, he sit for hours at the door. [ ] A.would B.could C.
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![When the old man was alive, he sit for hours at the door. [ ] A.would B.could C.](/pic/43_766081.jpg)
When the old man was alive, he ________ sit for hours at the door.
[]A.would
B.could
C.must
D.might
试题答案
答案:A
![When the old man was alive, he sit for hours at the door. [ ] A.would B.could C.](/pic/43_766081.jpg)
When the old man was alive, he ________ sit for hours at the door.
[]A.would
B.could
C.must
D.might
答案:A