–When did the Olympic Torch Relay start in Fujian?– May 11th .A. InB. AtC. OnD. From

问题补充：

–When did the Olympic Torch Relay start in Fujian?

– May 11th, .

A. In

B. At

C. On

D. From

答案：

A. In

B. At

(答案→)C. On

D. From

解析：在具体的某一天前用介词on。句意为“--什么时候奥运火炬在福建开始呀？--5月11日”