[ Grammar and Absence ]
Which sentence uses the correct negative form?
A. Alice and Bob were not classmates in high school.
B. Alice and Bob were not classmate in high school.
C. Alice and Bob wasn’t classmates in high school.
D. Alice and Bob were not class in high school.

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Conditionals 1,2,3Can, Could, May, MightRelative Pronouns with PrepositionsGrammar for TOEFLComparatives or SuperlativesParts of SpeechSubordination ConjunctionsTo infinitive - GerundWishesNoun ClausesOther quiz:
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