Dear Sir ，
I don’t really agree with the opinion that children should take after school classes,because children have to work hard at school and actually they have taken enough stress.Although some parents are right about the ideas to make their children successful,I think children should be respected and they have their own interests and hobbies.
In my opinion,it is important for parents to talk with their children about whether they are willing to take after school classes.I believe it is better if parents show their respect to their kids so that there will be a good result.Perhaps communication between parents and children is useful both for parents and children.
I have just learnt that___________.I hasten to tender you a word of congratulations on this splendid success of________.
It is indeed a remarkable thing for _________.The success of your________proves not only____________,but also___________.
Again,please accept my warm congratulations and please give my best wishes to__________.