英语作文An interesting picnic（40字）

first we climbed to the top of the hill.we saw many pupils there.we talked ,laughed and played together.then at picnic time,we shared our food .we saw a beautiful stream near by.but there was much rubbish in it.that's a pity .we thought we should tell the people to protect our living environment.so after our picnic,we put up several signs near the stream.we wrote "please keep the stream clean and beautiful" on the signs.
time to go home,we said goodbye each other and we made an appointment of next year..on our way home,we all thought that's a very interesting picnic.