She came to visit the Greens ( ) they were having supper 填什么?是as before

英語(yǔ)人氣：126 ℃時(shí)間：2020-04-26 11:51:28

優(yōu)質(zhì)解答

as
這里作連詞（Conj.）
在…期間,當(dāng)…時(shí)候
I was coming in as he was going out.
我進(jìn)來(lái)的時(shí)候,他正出去.
你這道題的中文意思是：“她在格林夫婦吃晚飯的時(shí)候去拜訪了他們.”
Before顯然不對(duì)啦,因?yàn)槟憧匆畹倪B接詞后面的句子的時(shí)態(tài)和語(yǔ)態(tài)是過(guò)去進(jìn)行時(shí),特別是"having"這個(gè)進(jìn)行時(shí),為什么會(huì)用進(jìn)行時(shí)呢?說(shuō)明格林夫婦正在吃晚飯,而不是在吃晚飯之前,排除before.