He did not answer the expectations of his friends.

他辜负了朋友们的期望。

《新英汉大辞典》

He did not answer my question.

他没有回答我的问题。

youdao

If you spoke to him, he did not answer.

人家问他，他不回答。

youdao

He did not answer the charges himself but his lawyers entered a plea of not guilty.

VOA: special.2010.01.09

He might go away,she thought, if she did not answer.

VOA: special.2010.05.15

Speaking to VOA News in Budapest, Serbian Foreign Minister Vuk Jeremic said Mladic will be extradited as soon as he is found, although he did not answer whether that may happen this year.

VOA: standard.2009.10.25

He did not answer the question directly but said all the officers involved were part of a drug investigation.

CNN: NH police chief killed days before retirement

Police later went to his home but he did not answer the door.

BBC: Connor Carl Bather sentenced for driving 'like a maniac'

"In hindsight, it's probably a good thing that he did not answer based on his actions before and after that event, " he said.

CNN: Renegade ex-cop Dorner died from single gunshot to head