They haven’t been used ___ many years.
a. for
b. since

Random Topics:
ConnectivesPassive and Active SentencesPersuasive TextClauses and GerundsInfinitives and ING FormsDo not- Does notAdjectives (-ed / -ing)Present Simple & Present Continuous TensesQuantifiers and ArticlesNounsOther quiz:
Past Tenses › ViewI _________________ the email before he apologized.
A. has wrote
B. had written
C. wrote
D. write
Grammar › View
He _________________________ to Cape Town before 1997.
A. wasn’t been
B. has been
C. hadn’t been
D. hasn’t been
Present Tenses › ViewChoose only CORRECT sentence.
A. I currently work on an importnat project.
B. Our company is currently developing a new project.
C. I meet the CEO of our company tomorrow afternoon.
D. Our competitor launch a new product every half a year!
Conditional Sentences › View
Nam is not here,.he doesn’t give you any advice
A. If only Nam had been here, he could have given you some advice.
B. If Nam were here, he couldn’t give you any advice.
C. Provided that Nam is here, he can’t give you any advice.
D. If Nam were here, he would give you some advice.
