题目内容
——_____was the Nanjing-Changjiang Bridge open to traffic?
——It was open to traffic in 1968.
A.What B.What time C.How long D.When
D
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题目内容
——_____was the Nanjing-Changjiang Bridge open to traffic?
——It was open to traffic in 1968.
A.What B.What time C.How long D.When
D