1 . Please e____________ (确保) all lights are switched off before leaving the classroom. (根据中英文提示单词拼写)

2 . Sonny, never j________ (判断) a book by its cover. (根据中英文提示填空)

3 . W________ (闲逛) among a variety of shops selling gifts while enjoying a live music show and nice street entertainment. （根据中英文提示填空）

4 . Please e______(to make sure that sth happens or is definite) that all lights are switched off. (根据英文提示单词拼写)

5 . Go to a part of the world you’re unfamiliar with and o___________(观察) how people live there. (根据中英文提示单词拼写)

6 . Please e________ (确保) all the lights are turned off when you leave the classroom. (根据中英文提示填空)

7 . Don’t c________ (向……挑战) the cold by pushing yourself too hard. （根据中英文提示填空）

8 . In any unsafe situation, simply p_____ (按，压) the button and a highly-trained agent will get you the help you need. (根据中英文提示填空)

9 . In the event of difficulties, please do not h__________(犹豫) to contact our Customer Service Department. (根据中英文提示填空)

10 . She didn’t h________ (to be slow to speak or act because you feel uncertain or nervous) about taking the job. (根据首字母单词拼写)