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:
Simple Present Tense › ViewThey . . . . not want to go to the cinema.
A. do
B. does
C. did
Grammar › View
I’m thirsty.
A. You shouldn’t ask your parents.
B. You shouldn’t hang out with your formal friend at night.
C. You should go to the cinema to buy a box of popcorn.
D. You should buy a bottle of water at the canteen.
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.
