[解析]
M:Hi,Marie.What are you doing now?Today is Saturday.
W:Yes.It's also the Double Ninth Festival.Our school organized some activities.We had a field trip from 8:00 a.m.to 10:00 a.m.From 10:10 a.m.to 11:00 a.m,we helped clean our canteen.From 11:30 a.m.until 1:00 p.m,we had lunch.
M:So you just finished your lunch?
W:Yeah.And we are on our way to buy some fruit for the old people,especially the empty nesters.I will sing a revolutionary song which is to their taste.We are scheduled to return to school at 6:00 p.m.
M:Great.I believe it will remind them of the valuable moments in their life.
W:Sure.We can also help them get a haircut and do some laundry.Some people are fond of Chinese chess.We can play the board game.
M:It sounds wonderful.We will grow old one day.You really inspired me.I should cancel my appointment with my friends and I'll buy a fruit basket to see my grandparents during the visiting hours.I'd love to do something meaningful like you.