[ Grammar ]
It _____ working.
A. am not
B. is not
C. are not
D. not

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Have to/Has toBare Infinitive and To InfinitivePast ParticipleCan vs CouldPresent, Past and Future TenseRelative - ConditionalModals Posibility and ProbabilityPassive Modals, Impersonal PassiveVerb Tense, Pronouns and AntecedentsSimple Past Tense (was/were)Other quiz:
Grammar › ViewWhat form expresses a future action as definitely settled due to one’s previous decision.
A. future simple
B. present continuous
C. present simple
D. to be going to
Adjectives › View
“Between Snow White and me, who is _______?” the Queen asked the magic mirror.
A. the fairest
B. fairest
C. fairer
D. fair
Vocabulary › ViewAt right angles to a horizontal plane; in a direction, or having an alignment, such that the top is directly above the bottom is the definition of what word?
A. upright
B. vertical
C. perpendicular
Grammar › View
Select the correct spelling.
A. karbon
B. carbon
C. carbone
D. carbonne