He felt very sad after losing his pet.

他失去了他的宠物，感到很伤心。

His pet dog is dead, and he is very sad.

他的宠物狗死了，他很伤心。

He was very sad to see his friend leave.

看到朋友离开，他很伤心。

She was very sad when she heard the news.

她听到这个消息后很伤心。

She was very sad because she failed the exam.

她因为考试不及格而很伤心。

The ending of the movie made us all very sad.

电影的结局让我们都很伤心。

People would be very sad about it.

要是动物不巧被车轧了，人们就会很伤心。

Her mother and father were very sad.

她的父母很伤心。

What the said just now made Mary very sad.

他刚才的一番话使玛丽很伤心。

Ba li was very sad, but still not the truth.

芭丽很伤心，可仍然没说明真相。