What I need is book that contains ABC of oil painting.
A. a; 不填
B. the; 不填
C. the; an
D. a; the
网友回答
A. a; 不填
B. the; 不填
C. the; an
(答案→)D. a; the
解析：冠词选择是和合理的语境密切相关的。第一个空应该是 “我需要的是一本……的书“故选冠词a 。后一个空ABC 意为”basic knowledge” 结合后面的of 短语,可判断应该是特指。即应该为the basic knowledge of oil panting 。