下列选项中不属于动物行为的一项是（ ）

用所给动词的适当形式填空
Look, there are so many people over there. What ____(happen)?
It's seven in the morning. It's time for us ____ (go) to school.
Look at the clouds in the sky. I think it____(rain).
____ (be) everyone here?  Yes, Let's____ (start) now.
He ____(be) be fifty years old next month. But he ____ (look) so young.
Teachers' Day____(come) . And we ____ (plan) to buy some flowers for Mrs. Li.
My mother usually ____(shop) for food on Sundays.

A: Excuse me. Is there a post office in the neighborhood?

B: Sorry. I'm new here. ____

A: Excuse me. Can you help me?

C: Yes? What is it?

A: ____

C: Walk along the street, and then turn right at the first crossing.

A: ____

C: Yes. ____

A: Thanks a lot.

C: ____