I can answer for her honesty.

我可以担保她为人诚实。

I didn't have a ready answer for this dilemma.

我没有现成的答案来解决这个进退两难的问题。

I agree, but I can't answer for my colleagues.

我同意，但是我不能代表我同事们的意见。

He must be made to answer for his terrible crimes.

必须让他为他的深重罪行付出代价。

You will have to answer for your behaviour one day.

总有一天你要因你的行为承担责任。