[ Vocabulary & Grammar ]
Cultural diversity is ____ mainspring for sustainable development for individuals, communities and countries.
A. a
B. an
C. the
D. no article

Random Topics:
Verb Tenses and Subject Verb AgreementPersuasive TextPhrases and TensesWishes & Reported SpeechLinking Verbs and TensesArticles and NounsFuture FormsPronouns and QuantifiersConditional and SubjunctiveGrammar - Place and MovementOther quiz:
Noun Clause › ViewAstri talks about her early life experiences with …
- whoever will listen
- will whoever listen
Passive Voice › View
I have read those books.
Change this sentence into passive voice!
A. Those books have been read by me
B. Those books have read by me
C. Those books has been read by me
Grammar › ViewThis is the second time I … this song.
A. Have heard
B. Had heard
C. Hear
D. Am hearing
Tenses › View
Past simple, past perfect simple or past perfect continuous.
They ___ (train) all morning in the gym, which is why they ___ (be) exhausted.
A. had been training / were
B. had trained / had been
C. trained / had been being
