-- How long has your son the ipad2? Only about two weeks.A. boughtB. hadC. borrowedD.

问题补充：

-- How long has your son the ipad2?

-- Only about two weeks.

A. bought

B. had

C. borrowed

D. received

答案：

A. bought

(答案→)B. had

C. borrowed

D. received

解析：动词辨析。Buy买；have拥有；borrow借；receive受到。根据下文how long多长（时间）表示一段时间，应该和延续性动词连用，选项ACD都表示瞬间动作，只有答案B，符合题意。