请根据所听到的内容，完成下面的简述。
    How can Ada make a good impression on her new ____?
    First, she should make herself look ____.
    Second, she should arrive at the restaurant right at ____ o'clock.
    Third, she should have a ____.
    Last, she needs to ____ off her mobile phone when she's talking with her new friend.

被太平洋、印度洋、大西洋所环绕的大洲是（  ）

阅读理解
A
    Jennifer and William live in New York．They have a daughter, Emma，but 3-year-old Emma doesn't live with them．She is in California with her grandparents．It is Jennifer's birthday today．Jennifer and William come to a nice restaurant to celebrate (庆祝)．
Waiter：Good evening，how can I help you today?
William：We'd like a table for two, please．
Waiter：This way，please．
Jennifer：Thank you．Can we have a menu(菜单)?·
Waiter：Here you are．My name is Alan．I'm your waiter today．Would you like to hear today's specials?
William：Sure．
Waiter：Well．today's specials are chicken soup and fish and chips(炸鱼薯条)．
Jennifer：OK．I'd like fish and chips．
William：I would like to have pasta （意大利面食）with tomatoes．
Waiter：OK．Would you like to have some salad? Our salads are great．
Jennifer：I'd like a green salad．
Waiter：Very good．Would you like something to drink?
Jennifer：Oh．Water is OK．
William：I would like some orange juice，please．
Waiter：OK．So that's a green salad, fish and chips and water, pasta with tomatoes and orange juice.
Jennifer：Yes，that's right．
根据材料内容选择最佳答案。

Our job is ______ the children.   

学习了声音的产生和传播后，小明同学做了以下小结.请你在横线上为小明填上空缺。