[ Passive Voice ]
Christopher Columbus discovered America in 1492.
A. America was discovered by Christopher Columbus in 1492.
B. America were discovered by Christopher Columbus in 1492.
C. America is discovered by Christopher Columbus in 1492.
D. America wasn’t discovered by Christopher Columbus in 1482.

Random Topics:
Modals and Semi-ModalsPRESENT SIMPLE - CHILDRENModals AuxiliaryAdverbs of Manner, Likes and PreferencesTenses and ArticleGrammarSubject-Verb AgreementIndefinite and Definite ArticlesLet & Be allowed toPronounsOther quiz:
Grammar › ViewIt’s a secret. You__________let anyone know about it.A.
A. mustn’t
B. needn’t
C. Mightn’t
D. may not
Grammar › View
They ____________ speak French.
A. don’t
B. doesn’t
