看看他写的小日记里有没有语法错误.哎,我这当妈的英语都扔了20年了.Today is a Sunday.It is very hot.My mother and I are goingto a bookshop.There are some books in the bookshop.I like interesting books.So I want to buy some in

看看他写的小日记里有没有语法错误.哎,我这当妈的英语都扔了20年了.Today is a Sunday.It is very hot.My mother and I are goingto a bookshop.There are some books in the bookshop.I like interesting books.So I want to buy some in
看看他写的小日记里有没有语法错误.哎,我这当妈的英语都扔了20年了.
Today is a Sunday.It is very hot.My mother and I are goingto a bookshop.There are some books in the bookshop.I like interesting books.So I want to buy some interesting books.I like reading it.But after an hour.I am very tired and thirsty.Then,I am sitting on the chair.Mum ask me"What is the matter with you?" "I am very thirsty .I want some water." "Waht do you like?There is some water,some juice,some caffee and some tea on the table.What do you want?" "I want a bottle of juice.Because it is very sweet." So my mother is giving buy a bottle of juice for me.I am very happy.I am drinking the juice.

看看他写的小日记里有没有语法错误.哎,我这当妈的英语都扔了20年了.Today is a Sunday.It is very hot.My mother and I are goingto a bookshop.There are some books in the bookshop.I like interesting books.So I want to buy some in
Today is a Sunday.(去掉a) It is very hot.My mother and I are goingto
（are goingto改成went,用过去式） a bookshop.There are some books in the bookshop.I like interesting books.
（该句改为 I like reading books或I'm interested in books) So I want to buy some interesting books.I like reading it.
(it改为them,不然文章前后不一致） But after an hour.I am very tired and thirsty.Then,I am sitting on the chair.Mum ask
（ask改为asked) me"What is the matter with you?" "I am very thirsty .I want some water." "Waht
(What) do you like?There is some water,some juice,some caffee and some tea on the table.What do you want?" "I want a bottle of juice.Because it is very sweet." So my mother is giving buy（?is giving buy怎么两个动词,直接用bought就好了） a bottle of juice for me.I am very happy.I am drinking the juice.
日记的时态应该用一般过去式,文章时态错误.但小孩能写成这样已经不错了,句子整体的结构都很完整.