He ________ Chinese history and knows a lot about it.
A、is strict with
B、is interested in
C、is satisfied with
D、is busy doing
【正确答案】：B
【题目解析】：结合句意可知B项是正确答案。bestrict with意为“对……要求严格”;be interested in意为“对……感兴趣”;be satisfied with意为“对……满意”;be busy doin9意为“忙于做……”。
