Hello ! My name is LiQiang . There are four people in my family . My father is a worker . My mother is a farmer . My little sister is a pupil. I am a pupil , too . We are in the same school .

如果|a+3|=1，那么a=____．

把下面排列错乱的句子整理通顺。

①国庆节前后，青枣慢慢变红了，像一个个小灯笼。

②我家院里有一棵枣树。

③春风吹过，枣树上开满淡黄色的花。

④那是一棵古老的、高大的枣树。

⑤夏天，枣树上结满了小青枣。