一、单项填空（共15小题，每小题1分，满分15分）
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
1. It’s kind ________ you to share the birthday cake with me.
A. of B. for C. to D. on
2. The new iPad ________ too much. I don’t have enough money to buy one.
A. affords B. spends C. pays D. costs
3. —________ will the Fourth Yangtze River Bridge be completed?
— In about half a year.
A. How long B. How soon C. How often D. How far
4. — Have you read the book called Around the world in Eighty Days?
— Who ________ it?
A. will write B. wrote C. was writing D. has written
