[ Grammar and Structure ]
Before electricity was discovered, oil lamps _______.
A. used
B. has used
C. has been used
D. had been used

Random Topics:
Past Simple and Past Continuous TensesSo or SuchGerund, Infinitive & ModalsIndefinite and Intensive NounPrefixes SuffixesAdverb or AdjectiveGerund/ To Verb/ VerbDEGREE COMPARISONPassive Voice - Present Simple and Past SimpleVerbs and PrepositionsOther quiz:
Grammar › ViewAlex _____ a Vietnamese until he met Linh.
A. had never meet
B. have never met
C. never met
D. had never met
Grammar › View
Eliza _____ from Greece. _____ from Poland.
A. Is/ isn’t
B. isn’t/ She’s
C. is/ Isn’t
D. is/ Is not
Mixed General Quiz › ViewHe said it was just a small scratch referring to a large dent.
A. Understatement
B. Synecdoche
C. Irony
Grammar › View
An adjective of size is …
A. big
B. beautiful
