、单项填空（每小题1分，共15小题；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. Nanjing,______ capital of Jiangsu, is a beautiful city with____ long history.
A.a; a B. the; the C. a; the D. the; a
2. To film fans’ delight, ‘Titanic’ in 3-D returned to Chinese screen ______ April 10, 2012.
A. in B. on C. at D. /
3. —Why don’t we take a taxi to the Olympic Sports Center in Hexi?
—I can’t ____ it. Let’s take the bus instead.
A. afford B. pay C. treat D. choose
4. —Which shirt will you take, the white one or the blue one?
— _______ , just for a change.
A. Either B. Neither C. Both D. All
