http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Grammar practice for upper intermediate students
Grammar practice for upper intermediate students with answer key
The most practical grammar textbook for English learners
Nouns, adjectives and adverbs; Verbs; Conditionals; Modals; Gerunds and infinitives; reported speech; Sentence structure...
Elaine Walker, Steve Elsworth ; Chú giải : Nguyễn Văn Phước, Ban biên dịch First News.