摘要： scores of times , but he still couldn’t understand it ． A．Having explained B．Having been explained C．Though it was explained D．It was explained
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_____ scores of times , but he still couldn’t understand it ．
A．Having explained B．Having been explained
C．Though it was explained D．It was explained
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_____ scores of times , but he still couldn’t understand it ．
[ ]
A．Having explained
B．Having been explained
C．Though it was explained
D．It was explained
查看习题详情和答案>>
B．Having been explained
C．Though it was explained
D．It was explained
_____ scores of times , but he still couldn’t understand it ．
A．Having explained B．Having been explained
C．Though it was explained D．It was explained
查看习题详情和答案>>