Ⅰ. 根据汉语或者首字母提示, 写出所缺单词
1. Last month, the doctor strongly recommended(建议) that the patient take a good rest.
2. It is convenient for people to use computers thanks to the evolution(演变) of the computer.
3. The book is one of the most precious(珍贵的)gifts I have received.
4. The government has taken measures to maintain(维持) the prices of the food.
5. Experts often propose(建议) that people should take more exercise.
6. Not only did they invest time and money in the project, but also their love.
7. To protect the endangered animals, a lot of natural reserves have been set up in the past few years.
8. No reference to their existence appears in any literature of the period.
9. The Great Wall is on the World Heritage list.
10. It is estimated that the number of the infected with COVID-19 has reached more than 70 thousand.