一、单项填空
1.(江苏省南京市六校联考2016届高三上学期12月调研测试)Jack Ma, the founder and chairman of China’s Alibaba Group, has a $28.6 billion fortune, ________ making him the richest person in China.
A. it B. one C. that D. which
2.(浙江省宁波市2015届高三上学期期末考试)________ it is the first choice of many young travelers, Europe is also seen as a wonderful tourist attraction by many old people.
A. While B. Unless C. Once D. Until
