问题
选择题
The scientist knew nothing about the matter, because he was always _________ himself in his study.
A．burying
B．devoting
C．focusing
D．concentrating
答案
答案：A
题目分析：考查动词和动词搭配：A. burying 埋葬，bury oneself in…B. devoting奉献，致力于，devote oneslf to …，C. focusing专注，focus…on，D. concentrating专注，concentrate on，句意：科学家不了解这个事情，因为他总是埋头在书房里面。选A。