单选题 He was studying medicine in Japan ______.
[A] at that time [B] at time
[C] at other times [D] at any time

【正确答案】 A

【答案解析】[解析] 本题考查的是time的搭配用法。at that time在那时；at time偶尔；at times有时，不时；at other times往常；at any time任何时候。