It was Sundy yesterday.It was sunny.( The sun was shinning.) The students of Class Seven went to the park to plant trees.They went there by bus.When they got there,they began to plant trees.Some carried water,some dug holes,others put the trees in the hole and put the earth back.They helped each other.The planted at least fifty trees.They had a busy but happy day there.
不懂的地方可以问哟