已知函数$f\left(x\right)=\sin \left(x+\phi \right)+\cos \left(x+\phi \right)$为奇函数，则$\phi$的一个取值为（　）

从方框中选择合适的选项补全对话 (其中有两项是多余的)。

A: Excuse me, I'm a teacher from Chao Yang School. ____

B: Sure.

A: May I have your name please?

B: My name is Wang Duo.

A: ____

B: I'm in Grade 9.

A: ____

B: I like surfing the Internet and e-mailing people in different countries in my spare time.

A: ____

B: Yes, I think I can improve my English in this way.

A: Sounds great. What are the other advantages of your hobbies?

B: They can help me learn a lot about foreign cultures and customs.

A: Yes, they are really good for you.____

B: You're welcome.

2016年政府工作报告指出，“鼓励企业开展个性化定制、柔性化生产，培育精益求精的工匠精神，增品种、提品质、创品牌。”工匠精神出现在今年的政府工作报告中，让人耳目一新。我国在20世纪六、七十年代创造的精神财富的核心是（    ）