I really need to try to improve what i am saying,
about 2 years that i have studied english, i was the lazy guy, and just studied for speaking and listening (something like Toeic), and often invited teacher and classmates to go out for coffee to practise, so 45 ibt is the good result for that - i thought. And i have no problem 3 years later, because my job doesn't need more (just taking any abroad customer, go for lunch, dinner, talking about the weather or sometging like that.
But now, i have a good chance in my company (i am the best about english

, and youngest) so i get slot to study in New Zealand, that's why i need to get 6.5 ielts on June.
Dont need to test, i think i know what my problem is by myself:
vocaborary is very very poor.
grammar is weak.
And both of them make 4 my basic english skills is bad. I have change and add someway to study enghlish anyway (chatting with friend by english, reading news, wathing movies, trying to post and read in this box ...).
The point is, i am looking for any english teaching center in hanoi to study by many way (asking friends for suggestion, googling...) and this topic also is one way. I am making my own option to make a choice.
As you know, which one has good quality ?