Answer: B) No comma is needed.
Explanation for this question is being written.
Answer: D) Which
Answer: A) Which
Answer: D) When
Answer: A) That
Answer: C) Altum, lata, leve, grave.
Answer: B) That
Answer: B) Whom
Answer: A) The boy who is playing in the park is wearing a red shirt.
Answer: A) Won the Nobel Prize is brilliant.
Answer: D) Who was tweeting.
Answer: B) Whose
Answer: D) Whose
Answer: A) Who
Answer: B) WHO
Answer: B) Which
Answer: B) As
Answer: A) Which was originally used to bring in distant stations.
Answer: A) That/which
Answer: B) Who
Answer: B) Which is called Taunton.
Answer: B) Where
Answer: A) Kind
Answer: B) Short lines that connected.
Answer: A) Whose
Answer: A) Embarrassed
Answer: C) Where
Answer: A) Whose should be replaced with who.
Answer: A) -who is-.
Answer: D) Which / that.
Answer: B) False
Answer: E) Whose
Answer: C) Same size.
Answer: C) The house which was built 100 years ago is very old.
Answer: C) Port
Answer: A) TRUE
Answer: B) The new video game that I bought yesterday is really challenging.
Answer: C) Who lives next door.
Answer: D) Who
Answer: C) Who
Answer: A) He room has been fully cleaned and inspected.
Answer: A) A
Answer: C) Adjective
Answer: C) Most people know.