Choose the sentence with correct comma usage.
A. My dear old grandfather who is seventy years old still jogs everyday.
B. My dear old grandfather ,who is seventy years old, still jogs everyday.
C. My dear old grandfather, who is seventy years old still jogs everyday.

Random Topics:
Tenses and PronounsPresent and Past Simple PassivePresent and Past Simple TensePronounsTypes of Sentence StructurePresent Progressive TensePresent Tense vs Past TenseSentencesPassive ModalsArticle and Order of AdjctiveOther quiz:
Grammar › ViewWhich sentence has a past tense verb mistake?
A. Louis walked past the main library.
B. He fell down and kicked his foot against the table.
C. Mrs. Yates knew the answer to Louis’ question.
D. Two librarians lookt at him when he walked in the library.
Grammar › View
John: “I’m going to the Long Beach.”
John said that he ______ to the Long Beach.”
_____
A. is going
B. was going
C. went
D. had gone
Grammar › ViewThe Himeji Castle ______ built in the 14th century.
A. was
B. were
C. had been
D. has been
Future Tense › View
I ___ this day for the rest of my life!
A. am remembering
B. will remember
C. remembered
D. have remembered