Alone in the lab on Sundays, the young scientist was so busy with his research work that he felt but lonely.
A. nothing
B. all
C. anything
D. everything
网友回答
A. nothing
B. all
(答案→)C. anything
D. everything
解析：考查固定词组。Nothing but只不过，无非；all but几乎；anything but一点也不；句意：星期天独自一人在实验室里，这个年轻的科学家如此忙于他的研究以至于他一定也不感觉到孤独。根据句意说明C正确。