The workers had been ____ strike ____ almost a month.

A. on; in
B. at; in
C. on; for
D. on; during
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科目：初中英語 來源：專項題 題型：單選題

The workers had been ____ strike ____ almost a month.
[     ]
A. on; in
B. at; in
C. on; for
D. on; during

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