A. being taken B. taking C. have been taken D. to have taken 2、Mary regretted ___ to John’s birthday party last Sunday. A. not going B. not to go C. not having been going D. not to be going 3、Don’t forget ___ the window before leaving the room...
1) 情态动词不能表示正在发生或已经发生的事情,只表示期待或估计某事的发生。 2) 情态动词 除ought 和have 外,后面只能接不带to 的不定式。 3) 情态动词没有人称,数的变化,即情态动词第三人称单数不加-s。 4) 情态动词没有非谓语形式,即没有不定式,分词,等形式。 比较...
10、You ___ not have seen her yesterday for she was abroad. A. must B. should C. could D. would 11、You could have done much better yesterday. Why ___? A. didn't you B. couldn't you C. hadn't you D. shouldn't you 12、“That latest car must have cos...
更多内容请点击：成人高考学位英语备考练习:非谓语动词