[ Sentence Structure and Punctuation ]
Identify the sentence that correctly uses commas to set off a non-essential clause.
A. My brother, who is a doctor, lives in New York.
B. My brother who is a doctor lives in New York.
C. My brother who is a doctor, lives in New York.
D. My brother, who is a doctor lives in New York.

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Gerunds & Infinitives + VocabularyFuture Tense VerbVerb Tenses and Sentence StructurePresent Perfect: for/sinceNouns as AdjectivesKinds of SentencesComparative AdverbVerb BEParticiple Clauses & Cleft SentencesPassive with ModalsOther quiz:
Grammar › ViewHe is fantastic ___ working in a team to deal with problems.
A. in
B. at
C. on
D. up
Coordinate Conjunction › View
The guy is a contractor, _______ he knows the construction business.
A. So
B. And
C. But