Answer: C) To introduce a relative clause.
Explanation for this question is being written.
Answer: C) Whose
Answer: A) Which
Answer: D) In which.
Answer: A) Required
Answer: A) Relationships between other words.
Answer: B) To whom you were speaking.
Answer: C) Where
Answer: A) A
Answer: A) Where
Answer: C) Relative
Answer: D) Whose
Answer: B) For which.
Answer: B) Where
Answer: C) Which
Answer: D) For places.
Answer: A) Whom
Answer: A) Power
Answer: D) Whom
Answer: B) Whose
Answer: D) A couple of whom showed up in the party.
Answer: C) Who
Answer: B) A dentist is a kind of doctor.
Answer: A) This is the park where I play soccer.
Answer: C) Which/that
Answer: E) Whose
Answer: C) Which my father bought in Japan.
Answer: D) Where
Answer: B) Of which.
Answer: C) In which.
Answer: B) That was developed quickly.
Answer: D) The ship, which was carrying valuable cargo, arrived at the port.
Answer: B) France is the country where the best wine is produced.
Answer: A) From
Answer: C) Among whom she lived.
Answer: C) That