it was fine on march 12 ， 20xx . i got up early that day . all the students in our school went to the hill to plant trees .

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we arrived at the hill at eight oclock . the teacher asked each of us to plant at least six trees . then we started digging ， planting and watering . we all worked so hard that we could finish our tasks ahead of tim e . among us ， wang lin ， our monitor set a good example for us . though he was ill ， he worked harder . when he finished his task ， he went on to help others without even a little rest . he was wet all over after work .“ i must learn from him ，” i said to myself . looking at the lines of the young trees ， we smiled happily ， forgetting our tiredness .