1 . John Snow wanted to face the __________(挑战) and solve this problem.（根据汉语提示单词拼写）

2 . A family-friendly ________ (气氛) in the hotel makes travelers comfortable.

3 . An__________(编辑) is a person who is in charge of a newspaper, magazine, etc. (根据汉语提示单词拼写)

4 . He received the award in ________(认可) of his success over the past year. (根据所给汉语提示填写单词)

5 . The people in the study lost an___________ (平均) of six pounds in six months.

6 . Regular tests help the teacher to learn about the          (进步) of each student.

7 . The police have completed their ________ (调查) into the accident. （根据汉语提示单词拼写）

8 . Royal soldiers, on special ________ (场合),still wore the 400-year-old uniform of the time of Queen Elizabeth. (根据汉语提示单词拼写)

9 . He searched his___________   (记忆) for an answer.(根据汉语提示单词拼写)

10 . We should make every ________(努力) to treat the sick. (根据汉语提示单词拼写)