[ Passive Voice ]
Past participle of buy
A. Buyed
B. Bought
C. Buyen

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Gerunds as objects of prepositionThird Grade Examand, so, but, becauseInfinitive FormsGerund or to InfinitivePrepositions of Time and PlacePresent Simple: affirmative, negative, interrogativeSecond Type ConditionalNouns, Articles, DeterminersStative Verbs and TensesOther quiz:
Adverbial Clause › View_____ you finish this task, you can take a break.
A. When
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What’s ____? — It’s my new mobile phone.
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My friend _______ (write) three comic books since July.
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