--- Did Jack come back early last night?
--- Yes. It was not yet eight o’clock ______ he arrived home.
A．beforeB．untilC．whenD．a(chǎn)f ter
C

試題分析：考察時(shí)間狀語從句。句意：—Jack昨天晚上回來的早嗎？—是的，當(dāng)他回來的時(shí)候還沒有到8點(diǎn)。本句中的when he arrived home.是一個(gè)時(shí)間狀語從句。本題容易錯(cuò)選A項(xiàng)，但是ABD三項(xiàng)與句意不符。
點(diǎn)評(píng)：本題是是一個(gè)陷阱題，考生容易錯(cuò)選A項(xiàng)，會(huì)認(rèn)為是固定句式：It be 一段時(shí)間 before…一段時(shí)間以后某事才發(fā)生；如果before后面使用一般現(xiàn)在時(shí)，前面的主語使用將來時(shí)；如果before后面使用一般過去時(shí)，前面也使用一般過去時(shí)；但是該句型與句意不符�？忌獜纳舷挛牡挠枰源�(lián)出發(fā)。
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