[ Passive Voice ]
Gold_________ in California in the 19th century.
A. was discovered
B. has been discovered
C. was discover
D. they discover
Select your answer:

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Grammar › ViewYou are _______________ history today.
A. studies
B. studying
C. studied
D. studing
Grammar › View
We’ll have to work harder if we’re going _____ the job done in time.
A. To get
B. To have
C. Get
D. Have
