How awful! 可怕噢!
That's horrible/dreadful! 好可怕/吓人!
What a nightmare! 真是恶梦一场!
How terrifying! 吓死人了!
That's scary! 真令人害怕!
How frightening! 恐怖噢!
How creepy! 真令人毛骨悚然!
That's spooky! 阴森森的!
