What do you think about it?

  你对此怎么看?

  Is that right?

  那样对吗?

  Absolutely right.

  绝对正确。

  I think you're mistaken about that.

  我想你那样不对。

  Is that ok?

  这样行吗?

  That's ok/fine.

  挺好的。

  He was absent yesterday. Do you know why?

  昨天他没到,你知道为什么吗?

  Do you have any idea?

  你怎么想?

  I suppose he was sick.

  我猜他大概是病了。

  Will it rain tomorrow?

  明天会下雨吗?

  No, I don't think so.

  不,我想不会。

  Do you really want to know what I think?

  你真想知道我怎么想吗?

  Please give me your advice.

  请给我提些建议。