I. 单项填空：（共10小题，每题1分，满分10分）
1. Recently, China has witnessed _____ fear-driven buying rush, which causes salt to be out of _____ stock in major supermarkets.
A. the; the B. the; a C. a; / D. the; /
2. ---Can you give me a hint where I should take up the story Gifts of the Magi?
---Sorry, my mind ______.
A. was wandering B. had wandered C. is wandering D. has wandered
3. ---Though I ____not to buy more new clothes, I did buy that fancy dress at length．
---A girl is a girl! Another new reason?
---The cloth feels smooth and _______ easily.
A. am warned; washes B. have been warned; is washed
C. had been warned; washes D. am warned; is washed
4. ---Now more and more Chinese senior students are a pplying for admission to American universities through
