I sympathize with you. 我对您深表同情!

Thank you for your concern.

What a pity we've lost such a great man!

Yes, indeed. 确实是这样。

I'm going to miss my grandpa. 我很怀念我的爷爷

I know how you feel.

My father is in the hospital now.

That's too bad. 太不幸了

Try not to get depressed. 别太消沉了

I can't help it. 我无法控制自己

It was terrible this time, wasn't it?

It sure was.

My mother died when I was ten.

I'm so sorry. 那太不幸了

What a shame.

I couldn't pass the test.

Never mind. 没关系/别太在意