问题
选择题
It is only in the last sixty years that________any evidence that Loch Ness Monster might exist.
A．there has been
B．there was
C．it has been
D．it had
答案
答案：A
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It is only in the last sixty years that________any evidence that Loch Ness Monster might exist.
A．there has been
B．there was
C．it has been
D．it had
答案：A