[ Grammar ]
Which of the following sentences is grammatically incorrect?
A. Is this your jacket?
B. Whose jacket is this?
C. Is this jacket yours?
D. Who’s jacket is this?

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Modals of PredictionModal and Auxiliary VerbsSentence and FragmentGerunds as objects of prepositionPresent Perfect Simple and ContinuousMust Vs Have toModal VerbPronouns, Verb, ConjunctionVerb Tenses (Progressive, Perfect)Causative VerbOther quiz:
Past Tenses › ViewI was watching TV while the kids … in the garden.
A. played
B. playing
C. were playing
Comparison › View
In the end the married and lived __________ever.
A. happy
B. unhappy
C. happily
D. happiness
Vocabulary › ViewWhich word is an antonym for “laudatory”?
A. Complimentary
B. Admiring
C. Disparaging
D. Approving
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The update ___ be completed by noon, but there was a delay.
A. was supposed to
B. must
C. should
D. ought to
