根据句意及首字母或汉语意思完成句子。

1. What's your o________ of Mr. Li?

2. Everyone should show his t________ when he gets into the hall.

3. I saw the White House today. The P________ of the USA lives there.

4. He can speak ________ (外国的) language, such as English, French.

5. We sent a card with birthday ________. (问候)