Answer: B) Which
Explanation for this question is being written.
Answer: B) Adjective clause.
Answer: C) There is no nonrestrictive element in this sentence.
Answer: C) Al Gore, who gave a long and boring speech, won the Nobel Prize.
Answer: B) Non-defining
Answer: B) My sister, who is 25 years old, spent her holiday in France.
Answer: B) My brother, who is a doctor, lives in New York.
Answer: A) True
Answer: A) , which was very kind.
Answer: D) Which
Answer: C) Which means we will change classes.
Answer: B) Non-defining relative clause.
Answer: B) As I worked, it occured to me that it was awfully bright for this hour of the night.
Answer: C) My sister, who lives in New York, is visiting us next week.
Answer: C) , which.
Answer: B) Incorrect Usage.
Answer: C) Who
Answer: A) Which was written by a famous author.
Answer: B) Non-defining Relative Clause.
Answer: A) Who is from Krypton.
Answer: A) Everyone looked at Harry, the man in the ugly bathing suit.
Answer: C) Which
Answer: A) Correct
Answer: D) Which I watched last night.
Answer: D) Non-defining
Answer: A) Which
Answer: B) Non defining relative clause.
Answer: B) Who works at night.
Answer: A) Who
Answer: B) Non-Defining Relative Clauses.
Answer: B) The book, which is a bestseller, is on the table.
Answer: B) Non-Defining Clause.
Answer: A) It's grammatically CORRECT.
Answer: B) It is non-essential.
Answer: A) Use a comma to separate non-essential information.
Answer: A) Social network sites, which are very popular, will definitely change business.
Answer: B) Nonrestrictive
Answer: A) Non-defining
Answer: B) Which is bright red,.
Answer: A) , which.
Answer: D) Which has.
Answer: B) The university, which was founded in 1850, is very prestigious.
Answer: B) The gifts, which we opened immediately, were left on a table in the restaurant.