26．He never regretted the anxious hours he had had for the missing papers．A. searchB. sea

发布时间：2020-08-16 06:49:51


26．He never regretted the anxious hours he had had      for the missing papers．
A. search
B. searching
C. searched
D. to search

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A. search
(答案→)B. searching
C. searched
D. to search
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