支付更多钱将是愚蠢的。

It would be ___foolish to pay more.

我以为如果我拒绝，可能会显得愚蠢。

I thought I might look ___foolish if I refused.

由于她犯的错误，她看起来很愚蠢。

She looked ___foolish because of the mistakes she had made.