Not yet 还没

A:Are you ready?

你准备好了吗?

B:Not yet.

还没。

I have not yet found their key.

我还没有发现他们的钥匙。

A:Have you finished your homework?

你完成你的家庭作业了吗?

B：Not yet,just half of it.how about you?

没呢，才完成了一半，你呢?

背景音乐：La La land