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)