求英文高手幫忙修改，謝謝

Dear Mr. XXX,

Thank you for your e-mail of [date], informing me that my son XXX is required to attend an English tutorial class after school in the next school term.

I understand that it aims at giving my son the opportunity to improve his English proficiency. As a parent, I am eager to know how he has performed and what has been his weakness in English so that we could help focus on the correct tutoring for him. Please drop a line on this.

As I am not always available on phone, I would appreciate if you could contact me through e-mail.

Thank you.

with best regards,
[your name]
parent of [your son's name]

2015-06-21 12:27:10 補充：
correction:

Please drop me a line on this at your earliest convenience.

,老師通知我下年阿仔英文要入學校補習班，佢call過我，但咁啱聽唔到，所以佢send e-mail比我，以下是我的回覆，求英文高手修改，謝謝



Dear xxx,

Firstly,let me apologize for missing your call. Secondly, thank you for your email notifying me that my son, xxx, has to attend the English improvement class next term

Thanks again for your notification.

Best regards,
xxxxxx


This reply simply replies to the notice and accept the improvement class.

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If you really want to ask any question,simply call her back.
improvement classes can be 拨尖或補底, so I do not understand why you ask what problem your son has.
_________________________

Dear Mr. or Madam so and so,

Thank you for your e-mail and I understand that my son needs further improvements in written English; maybe that's what all about. If so I would like to remind him and his private tutor too. I am sorry that I had missed your call previously and then you sent e-mail to me afterwards . Thank you again for your consideration of my son.
With kind regards,
xxx

Error and correction:-
(1)May I know the causing problem for xxx as he is a problem child.
(2)Let me know if you have any improved technique to do something practical
(3)Your call as I am working.