Answer:
1. (i) Whoever is the last one to leave the room turns off the lights.
(ii) You don't want to know what Lily has planned to trick the boys.
(iii) Please tell me who left his shoes on the floor.
(iv) I have a surprise for whoever wins the race.
2. (i) Those people whose names are on the list will go to camp.
(ii) Students who work hard get good grades.
(iii) The lady who lives across the street is my aunt.
(iv) Pizza, which most people love, is not very healthy.
3. (i) The dogs started chasing my car once they saw it turn the corner.
(ii) The women took notes while being taught german.
(iii) You can put the package wherever you like.
(iv) She was so tired that she could not stand.
Step-by-step explanation:
1. Noun clause is the one where the clause functions like a noun in the sentence. Noun can be a person, place, thing, or an idea.
2. Adjective clauses are helpful in explaining the nouns. They don't change the basic meaning of the sentence rather add more information to it.
3. Adverb clause is a group of words that is used to change the meaning of an adjective, a verb or another adverb.