[解析]
M:Oh No,is it almost 7:00am.Why did my alarm work?
W:What's wrong?Your class starts at 8:00amYou have plenty of time,don't you?
M:No,today is my school field trip.I need to be at school by7:00,15:00am.
W:Oh yeah,that's right.You asked me to pack your lunchbox last night.
M:Can you drive me there right now?Mom?I would be late if I took the bus.
W:Sorry,sweetie,I haven't taken a shower or gotten dressed.I need at least 20minutes.
M:No way I will be in big trouble.
W:Oh ,look out the windowSeems like mrs.Anderson will drive her son Billy to school right now.How about you go with them?Billy is your best friend. I'm sure Mrs.Anderson wouldn't mind taking you with them,right?
M:You're brilliant,mom.