帮我检查一下英语作文有没有语法错误(不算大小写）

帮我检查一下英语作文有没有语法错误(不算大小写）1.dear uncle wang,i am a student from xinhua middle school .we will hold a food festival to raise money for the poor students in a county school.i want to invite you to come at 11:00 a.m.next sunday.hope you can come.we will be really happy.sincerlykangkang 2.we all know that food is very important to our health.fruits and vegetables are good for our health.they are green food.if we always eat them,we will be healthy.however,if you eat to much junk food,you will never be healthy.most of the junk food are high salt and high sugar.you will be fat if you eat too much of them.but they are always cheap and delicious so a lot of teenagers and children like to eat them.so we should eat less junk food and more vegetables from now on.