第Ⅰ卷（40分）
一、单项选择 (共15小题；每小题l分，满分15分)
在下列各题A、B、C、D四个选项中选择一个能填入题干空白处的最佳答案。
1. Now many foreign students come to China to learn ________ Chinese.
A. a B. an C. the D. 不填
2. — Do you know _____ this teddy bear belongs to?
— Let me see. Oh, it’s _____.
A. whose, mine B. whose, me C. who, mine D. who, me
3. The life we were used to ______ greatly since 2000.
A. change B. has changed C. changing D. changed
4. China’s Olympic 110m hurdles gold medalist Liu Xiang announced his retirement ______ the afternoon of April 7th, 2015.
A. on B. in C. at D. since
