which web page could learning me for toffel grammer?

Answer 1

TOEFL (Teaching of English as a Foreign language) and TOEIC (Teaching of English for International Communication) are two tests widely used in the world to measure people's ability to listen to and understand spoken English. There are also sections on reading, writing and grammar.
Barron's makes very good study guides for both tests. They should be available online at Amazon or at most large bookstores.
Google TOEFL for more info.