[ Passive Sentence ]
Gold_____ in California in the nineteenth century.
A. Was discovered
B. has been discovered
C. was discover
D. they discovered

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Subordination ConjunctionsPrepositions & Prepositional PhrasesGrammar Double Object VerbsPast Perfect Simple & ContinuousModals of Speculation and DeductionModals and InversionMaritime Vocabulary and GrammarAdjectives Ed and IngGerund, Participle, Infinitive, or AppositiveSimple Present Negative and QuestionOther quiz:
Modals › ViewI … convince her to read the book.
A. managed to
B. could
Grammar › View
Did you see Emma? She’s _________left
A. never
B. yet
C. already
D. ever
Mixed General Quiz › ViewYou must have nerves of ___.
a. steal
b. steel
Some vs. Any › View
….. student who comes late to the dance will not be allowed to enter.
a. some
b. any
