It took him a long time to the skills he needed to bee a professional artist.
A. require
B. acquire
C. inquire
D. gather
网友回答
A. require
(答案→)B. acquire
C. inquire
D. gather
解析：这些选项的词形看似一样,但意思不同。require 需要,要求,命令；acquire 获得,学到；inquire 询问,问明,查究； gather 使聚集,搜集,积聚,推断。这里指获得技术。故选acquire。