Preface

[binh nguyen]

Dear Khoi,

I am actually not sure of what u mean by "Preface". That is to say, I
would like to know it is exactly the preface of the unit or of the
textbook. In fact, as far as I know, there hasn't existed any preface
of a unit. Hence, I have tried to save my time writing the Preface of
the textbook as I think it must be.

Frankly speaking, my preface is simply what is translated form "Lời
nói đầu", which I get from English 11 (developed by the MOET).

Once more, I would like you to show your consideration on my task. U
know, my time is very limited these days; and it is devoted to my task
within today. From tomorrow on, all of my time will be entirely spent
on my work as teaching.

Nice work!

Brother Bình

(Right here is the attached file of Preface)

[Khoi Tran]

Thank you very much, brother Binh. We really appriciate your great contribution.