請問：1.老師說“The ship Mr. Wang bought last week is not as big as I saw on TV”中的“Mr. Wang bought last week”是形容詞子句，那它算是主詞補語嗎？2.兩個音節算是多音節嗎？3.兩個音節的形容詞的比較級和最高級要用“+er/est”還是“+more/most”?為什麼有些是用“+er/est”(如:happy,happier, happiest )有些卻又是用“+more/most”(如:useful, more useful,most useful )?4.“+er/est”或“+more/most”可用在副詞嗎?