I didn't know how to answer that question.

我不知道如何回答这个问题。

youdao

I was so amazed that I didn't know how to answer.

我太惊讶了，不知道该如何回答。

youdao

That was the question; but he did not know how to answer it.

那就是问题所在；可是他却不知道怎样回答。

youdao

"If I knew how to answer this question, he would not have been at large,"

VOA: standard.2009.10.25

So I think that it's more like how you spend your time doing stuff to have an answer than like something that I've learned specifically from college.

这事的关键就在于,如何支配时间,而不在于习得的具体技能。

斯坦福公开课 - 扎克伯格谈Facebook创业过程课程节选

There's a Midterm. That will be a short answer test that's intended to give you a chance to show how diligently you've been reading and coming to class.

我们会有一个期中考，会有一张简答问卷,目的是能够让你们表现出,你们的勤劳，用功阅读和按时上课。

耶鲁公开课 - 现代诗歌课程节选

My sister and I stole furtive glances at each other, not sure how to answer.

FORBES: Does A College Education And Career Make It Harder For Women To Find A Husband?

Hopkinson also includes some helpful suggestions on how to answer salary questions in an initial interview.

FORBES: Negotiating Your Salary in a Bad Economy

Retakes are freely allowed and questions are less cryptic, with more signposting about how to answer them.

ECONOMIST: Exams