Li Wei: Mum, there's a typhoon forecast for Sunday. We should make some preparations.Mum: I'll buy in plenty of food—enough to last for a few days.Li Wei: Don't forget to buy bottled water.Mum: No problem. I'll also check our basic medical supplies and see what we need. What else do we need to do?Li Wei: I'll check the flashlight for batteries and reinforce the windows. Oh, we should also move the flowerpots off the balcony so theydon’t blow off and hurt passersby.Mum: You're right.