(2014·山西省六所重点中学模拟)—Believe it or not，my sister and I are twins.
—Oh，you must have had the case________you were taken for your sister.

(2014·湖南郴州五校第二次联考)It was during the Ming Dynasty________the Great Wall was repaired and extended to take on the appearance it has today.

(2014·湖南郴州五校第二次联考)Not only________to turn off the lights in the kitchen，but we also failed to lock the front door.

(2013·丽水高三质检)What annoyed your father was not what you said，but the way________you said it.

（2014年山东日照市高三校际联合检测）3．The movie is adapted from a novel，____author I can’t remember now．

More teens are smoking in Beijing, ______ the number of primary and middle school students picking up the habit has more than doubled from previous years.

（2014届江西省重点中学盟校高三第二次联考英语试卷）34. He wrote a long letter ___he explained what had happened in the accident.

Barack Obama delivered a speech to 500 local youths during his visit to China, many of _______ were from Fudan University and Tongji University.

（2014山东省实验中学高三第二次模拟考试）3．Lily took a few friends to my birthday party，none of __________ I was familiar with．

.Europe has achieved more in controlling the AIDS virus than Asia in the past ten years, _________ the number of people infected with the virus is going up sharply.