A board _____ against the wall on which these words _____, "Danger, keep off."

A. set up; are written
B. put up; wrote
C. was set up; wrote
D. was put up; were written
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科目:高中英語 來源:同步題 題型:單選題

A board _____ against the wall on which these words _____, "Danger, keep off."
[     ]
A. set up; are written
B. put up; wrote
C. was set up; wrote
D. was put up; were written

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