一The summer vacation is coming．Do you have any ideas about the coming vacation?－I 　　volunteering in the old people’s home．What do you think of it?

My cousin___________ about an hour___________ her homework.

— ____ do you clean the classroom?— Three times a day.

I found him worth     because he devoted all his time he had to     people in need.

— So many problems! I’m too tired.  — You should try to _____________ them by yourself. You’re not a child any longer.