[ Essential and Nonessential Clauses ]
Which of these needs to be offset by (surrounded by) commas?
A. Essential clauses, phrases
B. Nonessential clauses, phrases
Select your answer:

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Tenses › ViewThey ___ currently ___ (negotiate) with the real estate agent about the net price of the mansion to be sold to them.
A. were … negotiating
B. had been … negotiating
C. are … negotiating
D. have been … negotiating
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She _____ to the store before it closed.
A. had gone
B. goes
C. is going
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