根据句意和所给的首字母或汉语提示，补全句子中所缺的单词。
1. The f________horse can\'t be controlled. What should I do?
2. One of my f________sayings is "Where there is a will,  there is a way. "
3. The door is too narrow for the elephant to go________(通过).
4. While he was on holiday,  he________(宁愿) doing something to doing nothing.
5. The teacher explained the maths problem to the students________(耐心).