[ Passive Voice ]
When…the telephone…?
A. was…invented
B. is invent
C. was…invent
D. were…invented

Random Topics:
There is, There are, Some, AnyGrammar - Countable/ UncountableNoun PhrasePast and Past ContinuousComparison of Adjectives and AdverbsProgressive Perfect and Simple Verb TensesArticles and DemonstrativesPrepositions of Place and TimeClauses and ConjunctionsConjunctions and PronounsOther quiz:
Tenses › ViewThe company ___ requires three years of experience for all job applicants.
A. once
B. sometime
C. usually
Simple Past Tense › View
My mother _____ Nasi Ayam for dinner last night.
A. cooked
B. cook
C. cooks