7．But for I ________ homework yesterday，the teacher ________ me now．（　�。�
A．finished； would blame
B．had finished； can have blamed
C．were to finish； should have blamed
D．had finished； must blame

分析 要不是我昨天完成了家庭作業(yè)，老師現(xiàn)在就會(huì)責(zé)備我了．

解答 答案：A
解析："我完成家庭作業(yè)"發(fā)生在昨天，故使用一般過去時(shí)，因此B、C、D選項(xiàng)全部排除；后面"老師現(xiàn)在就會(huì)責(zé)備我"是虛擬，故使用虛擬語氣（will的過去式為would）．綜上，本題答案為A選項(xiàng)．

點(diǎn)評(píng) 本題考查虛擬語氣，做此類題目時(shí)首先要明白虛擬語氣的定義及用法，再仔細(xì)分析句子結(jié)構(gòu)并根據(jù)句意確定哪些地方使用虛擬語氣．

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