题目内容
A board ________ by the side of the wall on which these words ________,“Danger! keep off!”
A.set up; wrote
B.put up; wrote
C.was put up; are written
D.was set up; were written
D
考查谓语形式。put up竖立,搭起;set up建立,主语为 A board, 后面谓语肯定用被动语态。先排除A、B。很容易看出整个句子为一般过去时态,所以D正确。
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