A board by the side of the well on which these words ,“Danger.Keep off! A.set up
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A board ________ by the side of the well on which these words ________ ,“Danger.Keep off!”
A.set up; wrote
B.put up; wrote
C.was put up; is written
D.was set up; were written
试题答案
D
解析:因定语从句中words为复数,故C项错误。