soggetto e complemento oggetto
Verb to be
Learn how to use your prepositions in the easiest way possible.
English Idioms: Love - Kaplan International Colleges Blog
English Grammar for ESL students: The difference between Look, See, and Watch
WH- QUESTION WORDS: http://www.englishexercises.org/makeagame/viewgame.asp?id=5283
Present simple "to work"
Past simple with the verb “to be”