|
19．[2010·浙江卷] Had I known about this computer program， a huge amount of time and energy ________. A．would have been saved B．had been saved C．will be saved D．was saved 【解析】 A 本题考查虚拟语气。根据Had I known提示，可知此句是虚拟语气，且与过去事实相反，故主句谓语用would have done的形式。此外本句还是被动，选A。 专题八 │ 实战演练 20．[2010·湖南卷] You ________ buy a gift，but you can if you want to. A．must B．mustn't C．have to D．don't have to 【解析】 D 考查情态动词。 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。 专题八 │ 实战演练 21．[2010·陕西卷] — May I take this book out of the reading room? — No，you________. You read it in here. A．mightn't B．won't C．needn't D．mustn't 【解析】 D 本题考查情态动词的用法。表示“禁止；千万别做某事”时，要用mustn't。 22．[2010·江西卷] I have told you the truth. ________ I keep repeating it? | 
