—When did you buy this puter? It looks so new.
—I it for only a couple of days. My sister bought it for me as a birthday present.
A. bought
B. have bought
C. have had
D. had
网友回答
A. bought
B. have bought
(答案→)C. have had
D. had
解析：此题重点考查延续性动词的基本用法。Buy是非延续性动词，不能和段时间状语连用，故用have。