单选题The chemistry class _____ for five minutes when we hurried there.Ahad been onBwas onChas been onDwould be on
单选题
The chemistry class _____ for five minutes when we hurried there.
A
had been on
B
was on
C
has been on
D
would be on
参考解析
解析：
句意：我们赶到的时候，化学课已经开始5分钟了。“开始5分钟”应该在“赶到”动作之前，也就是过去的过去，应该用过去完成时，故为A。
句意：我们赶到的时候，化学课已经开始5分钟了。“开始5分钟”应该在“赶到”动作之前，也就是过去的过去，应该用过去完成时，故为A。
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