[ Vocabulary ]
Basic or essential.
A. Confederation
B. Constitutional
C. Federalism
D. Fundamental

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Relative Clauses beginning with PrepositionsSimple, Compound, Complex SentencesKinds of SentencesPresent Progressive TenseConjunctions and CommasDo not- Does notConditional Sentence Type 1Modal Verbs & Reflexive PronounsPresent ContinuousSimple Present Continuous TenseOther quiz:
Personal Pronouns › ViewWe go to the beach this Saturday. Do you want to come with ___?
A. we
B. I
C. us
D. it
Vocabulary › View
The ___________ of the new machine is still under review.
A. performance
B. perform
C. performing
D. performed