题目内容：

Today is Sunday.It is fine and warm.The sky is very clear and blue.My classmates and I are very ...
Today is Sunday.It is fine and warm.The sky is very clear and blue.My classmates and I are very happy because we are going out for a picnic at Nanshan Hill.We are going there by bike.We have fruit ,eggs,meat,vegetables,knives and some other things with us.About one hour and a half later ,we come to a nice place at th efoot of the hill.There are many beautiful flowers and green trees.Birds are singing sweet songs.How pleased we are!Then we are busy with the picnic,some of us are carrying water把以上短文改成过去式 语法正确

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（过去的某一时间皆可） was Sunday.It was fine and warm.The sky was very clear and blue.My classmates and I were very happy because we were going out for a picnic at Nanshan Hill.We were going there by...