While Will thinks he already knows what's inside , we do not. ... Just like Will thought, it's the carnival mask that his brother Stephen gave him .
<span>In Christmas day, Will opens first his present from Stephen and finds a strange carnival head with a story that an Old One told Stephen to send it </span>
Answer:
The spooky black river is the subject.
The dance squad had eight members when it won the competition.
A relative clause can be used as an adjective or an adverb. Relative clauses must contain both a subject and a verb. They also begin with a relative pronoun (question words and that). The relative clause in the last option is "when it won the competition". It starts with "when" which is a relative pronoun. It describes when the action takes place which makes the entire clause an adverb. It has a subject "it" and a verb "won". Options B and C should be immediately thrown out because they do not have a relative pronoun. Option A does not work because there is no subject after "that".