1 . ________ (幸运地), I found my lost key on the sidewalk. (根据汉语提示单词拼写)

2 . The teachers tried to _________ (确保) the safety of the children. (根据汉语提示单词拼写)

3 . He says that _________ (戒掉；停止) smoking is the easiest thing in the world, for he has done it hundreds of times. (根据汉语提示单词拼写)

4 . She was cheerful and _________ (精力充沛的) throughout her trip. (根据汉语提示单词拼写)

5 . She was so _________ (鼓舞；激励) by the people she met online. (根据汉语提示单词拼写)

6 . I have told him about the____________ (安排) of the meeting. (根据汉语提示单词拼写)

7 . The ______(平均的；正常的) temperature in this city during summer is around 30 degrees Celsius. （根据汉语提示单词拼写）

8 . These____________ (乐队) played many songs, including some of my favorites. (根据汉语提示单词拼写)

9 . Her voice was ____________ (尖锐的), but she was kind and friendly. (根据汉语提示单词拼写)

10 . What will they do on Christmas ____________ (前夕)? (根据汉语提示单词拼写)