It's a 1 Sunday morning.Some good friends are going 2 a field trip to the Yellow Mountain.They are going to 3 a picnic on the top of the mountain.Every-one takes some food and drink 4 them. 5 two hours later, they are all tired and thirsty.They have to stop 6 a rest and drink.Then they go on 7 .They have a lot of problems 8 to the top.Linda often goes the 9 way, Hill trips over a stone(石头), Sam has to tie his shoes, Ed can't 10 his heavy bag, Lucy hikes too slowly.But they help each other, and at last they get to the top.They have a nice lunch and a good time.