假如你是Xiao Dong，Xiao Liang给你来了一封信，请你根据信的内容写一封回信。信的开头已给出，请把信补充完整。
Dear Xiao Dong,
I like your programs very much. I’m writing to ask you something about American social customs. My American friends want me to join them in their dinner party. I’m very happy and have decided to go, but I’m a bit worried about it. The social customs in my country are different from there, so I’m afraid of making some mistakes.
Should I bring a present, such as sweets or flowers? Should I arrive on time or a bit late? At the dinner table, how can I use fork and knife? How can I let the family know that I’m thankful for their  kindness.
Yours’
Xiao Liang

Hello，

I'm Xiao Dong．I'm from Ji Nan．There are five people in my family．My father is a doctor．He works in a hospital．My mother is a nurse．（A）She works with my father．The hospital is near my house．So my parents walk to their hospital every day．My parents often work at night．They are very busy but they like their（B）work．

My brother Xiao Peng is twenty-one years old．He is a waiter．He works in a small restaurant．He likes his job．On weekends I often help him with his work．My sister is policewoman．Her police station is not near my house．She takes a bus to her police station every day．She doesn't have lunch at home．In the evening she gets home very later．Oh，I'm a student at Happy School．I want to be a policeman．

根据短文内容，完成下列任务。

1．将（A）处画线部分改为否定句。

She _________ _________ with my father．

2．从短文中找出（B）处画线单词的同义词。

3．What does Xiao Dong's mother do?

4．根据短文内容。判断下列句子正（T）误（F）。

（  ）1）Xiao Dong's sister walks to work every day．

（  ）2）Xiao Dong wants to be a policeman．

补全对话 根据对话内容，在对话空白处填入适当的词。每空一词（缩写词为一词）。

Teacher: Who's 1 duty today?

Student: I 2 ．

Teacher: Is everyone 3 ?

Student: No．

Teacher: Who 4 here?

Student: Wu Hong 5 Xiao Dong．

Teacher: 6 are they?

Student: I don't 7 ．I think they are at 8 ．