你印象最深的是什么？

What impress you most?

初次见面，印象最深。

First impressions are half the battle.

那也是我印象最深的地方。

It's the deepest impression I've got.

哪个地方给你的印象最深?

Rudi : Which place impressed you the most?

我印象最深的是他的真诚。

What impressed me most was his sincerity.

哪个地方给你的印象最深？

Which place impressed you the most?

哪个地方给你的印象最深？

Rudi: Which place impressed you the most?

武汉之行您印象最深的是什么？

What impresser you most in Wuhan?

你印象最深的文化冲击是什么？

What is your most memorable cultural shock?

我印象最深的就是她的办事效率。

E. g. What impressed me the most is her efficiency.