①第一句的主干是末班車沒(méi)有來(lái)，半個(gè)小時(shí)過(guò)去了作時(shí)間狀語(yǔ)。第二句主干我們回家，走路作為方式狀語(yǔ)。
After? half? hour? going? by,? the? last? bus had not come. We had to go home by walking.
②主干是瑪麗看上去是擔(dān)心的，因?yàn)樗龥](méi)有背熟課文。
Marry looked like worried about the Chinese exam because she did not learn articles by heart.
③主干是籃球賽被推遲，我們參觀博物館。不妨（might as well）
Since the basketball game had been postponed, we might as well visit museum.
④主干他和他的父母住在澳大利亞。
His parents and he lived in Australia all the way during the Second World War.
⑤主干我失去了聯(lián)系與我的大學(xué)同學(xué)。（kind of 為副詞）
Since graduating from Nanjing University in 1985, I have kind of lost touch with my university classmates.
