Practice the following dialog. Then, answer the questions.

Delia: Good afternoon, Mom. I'm home.

Mrs. Khalisa: Hi, dear. How was your school? 

Delia: It was good, Mom. Anyway, the wind blew so hard this morning. It made some pots of plants fall.

Mrs. Khalisa: Yups, lots of dried leaves fell out because of the wind. I have swept the yard twice, but it's  already dirty now. 

Delia: I heard, wind will blow hard for the next few days. I'll help you sweep the yard after changing my clothes, Mom.

Mrs. Khalisa: O.K., dear. But, you have to get lunch first. Grandma has cooked beef soto.

Delia: Sure, Mom. Has brother returned home yet?

Mrs. Khalisa: No, he hasn't. He has been preparing his science competition at school.

What are they talking about?