1.(2010﹒安徽)Jack described his father, who _______a brave boy many years ago, as a strong– willed man
A. would be B. would have been C. must be D. must have been
【答案】D
【解析】句意为 “杰克把他的父亲描述为一个意志坚强的人, 他的父亲多年前肯定很勇敢。”用must have been表示对过去事情的肯定推测。
2.(2010﹒安徽)Bob would have helped us yesterday, but he-_______
A. was busy B. is busy C. had been busy. D. will be busy
【答案】A
【解析】前句表示对过去的虚拟, 而but之后表示过去的客观事实, 故用一般过去时态。
3.(2010﹒湖南)You buy a gift, but you can if you want to.
A. must B. mustn’t C. have to D. don’t have to
【答案】D
【解析】don’t have to 意为 “没有必要”, 符合语境, 句意为：“你没有必要买礼物, 但如果你想买的话, 你也可以买。”
