003) 1) He only mentioned "of" is a prep. 2) He changed his sentences to relative clauses. ( Relative clauses have nothing to do with this question.) 3) He failed to answer the following: 係一本教科書中出現了 People claim young people should be protected from movies that are of an unhealthy nature. 其中of 於 動詞 are 之後。從未見過這樣的用法,請教一下。 <---- that are of an unhealthy(adjective) nature(noun)= adjective clause This clause is used to decribe the noun "movies". 002) 1) 002 did not say "of" is an adjective- he meant the clause above should be called "adjective clause", which is a correct answer. 2) 002 did not talk anything unrelated. 3) His answer is clear and understandable. *** The car that she is driving is not hers. 如果邀請知識友投票正確答案有什麼錯? Baggio是對題不對人。不過也是Baggio+whatiswhat24 邀請我投票。