[ Grammar and Writing Skills ]
Identify the spelling mistake in the following sentence: “The scientist conducted a series of exparements.”
A. scientist
B. conducted
C. series
D. exparements
Select your answer:

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Tenses › Viewpast simple: Choose the correct form of the verb: We __________ (ate / eating) dinner at 7 pm yesterday.
A. eats
B. eating
C. eaten
D. ate
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My friends haven’t got_______pets
A. some
B. any
