with various research projects, that scientist can’t even find time to visit his parents.
A. Occupying
B. Occupied
C. To be occupied
D. To occupy
网友回答
A. Occupying
(答案→)B. Occupied
C. To be occupied
D. To occupy
解析：考查形容词用法。固定词组be occupied with sth忙于sth;be occupied in doing sth忙于做某事；本题中使用形容词短语occupied with…对句子的主语that scientist的情况进行说明。句意：忙于各种各样的研究工程，那个科学家甚至找不出时间去看他的父母亲。故B正确。