____,it would be silly to argue about it any longer.

____,it would be silly to argue about it any longer.
A was that true
B if that is ture
C should that be true
D could that be true

虚拟语气 首先排除A B A里面的was应该用were
从句意上看 排除D
正确答案是C
If that should be true,去掉if 句子倒装
如果这应该是真的,继续争吵这个是很傻的

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