3 sentences

1. 你应该不恐高吧？

   nǐ yīng​gāi bù kǒng​gāo ba?

   You're not afraid of heights, are you?

   Source: OpenSubtitles

2. 你不是恐高吗？

   nǐ bù​shì kǒng​gāo ma?

   Aren't you afraid of heights?

   Source: OpenSubtitles

3. 我知道你恐高。

   wǒ zhī​dao nǐ kǒng​gāo.

   I know you're scared of heights.

   Source: OpenSubtitles