根据汉语提示完成句子
1. The old man is ____ _____ (恼火) his son.
2. I did _____ ______(更好) maths than English.
3. When the UFO _____ _____ (起飞), the man was riding the bike.
4. Beijing is a beautiful place. I fall _____ _______ ____ (爱上) it.
5. My mom is _____ ______(为---做准备)the party.
答：1. angry with 解析：be angry with sb，对某人感到很恼火，很生气
2. better in 解析：更好，应该用good 的比较级，better,在某学科表现的好需用介词in.
3. took off 解析：take off(飞机等)起飞，后半句为过去时态，根据句意，前面也要用过去时态。
4. in love with 解析：fall in love with爱上---
5. preparing for 解析：prepare for 为---做准备