[ Grammar and Structure ]
Before electricity was discovered, oil lamps _______.
A. used
B. has used
C. has been used
D. had been used
Select your answer:
Random Topics:
Adjective / Noun + to InfinitiveModals for ObligationPronouns, Sentence Structure, and Figurative LanguagePrepositions and Phrasal VerbsPersonificationFew, a few, little, a littleVerb-ing and InfinitiveThird ConditionalGrammar - Present and Past PassiveTenses and Time MarkersOther quiz:
Grammar › ViewThere is a stationery shop ______ the corner of the road.
A. at
B. in
C. about
Grammar › View
Submit the report to the boss ___ it.
A. unless you would finish
B. provided that you would finished
C. if you have finished
D. if only you finished