6. I was really anxious about you. You _____ home without a word.
A. mustnt leaveB. shouldnt have left
C. couldnt have leftD. neednt leave
分析:根据句意:我真的很担心你,你真不应该一句话都不说就离开家。离开家已经发生了。Should have done正好表达了本句的意思。答案为B
7. A:Are you coming to Jeffs party ?
B:Im not sure. I _____ go to the concert instead.
A. mustB. would C. shouldD. might
分析:根据B的回答:我不一定去,我有可能去听音乐会。Might表示推测:可能。答案为D
8. A:I promise that she ____ get a nice present on her birthday.
B:Will it be a big surprise to her ?
A. should B. mustC. wouldD. shall
分析:A说:我答应她在生日聚会上她会得到一份生日礼物。shall表示许诺。答案为D 情态动词
1. 情态动词的推测表达
2. 情态动词表达虚拟语气
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