阅读理解。
A father asks his son “ How many letters are there in the Alphabet （字母表）？” “I don’t know,” says his son. His father says, “You don’t know ? You are in school for many years and you don’t know how many letters are there in the Alphabet ?” He is very angry.
His son says, “ No.But let me ask you a question, Dad.You often go to the post office, please tell me how many letters are there in the post office?’
判断正误，用T或F表示。
（1）From the story ,we know the son is good at English.
（2）The son studies at school over one year.
（3）The father gets angry because his son not polite to him.
（4）The father knows how many letters there are in the post office.
（5）There are twenty –six letters in the Alphabet.