单词拼写（每小题2分，共10分）
温馨提示：注意词型的适当变化
1. In the earthquake all houses were d _____to the earth.
2. He is a ___________ person and you can depend on him
3. _________ him not to smoke is a big challenge
4. It is___________ (承认 )that Taiwan is part of China
5. Good _________ (习惯) play an important part in the road to success