—How much do you know about the 3D film technology?
—A little. Not until the hot movie Avatar some about it.
A. did I see; did I begin to learn
B. I saw; I began to learn
C. I saw; did I begin to learn
D. did I see; I began to learn
网友回答
A. did I see; did I begin to learn
B. I saw; I began to learn
(答案→)C. I saw; did I begin to learn
D. did I see; I began to learn
解析：考查： Not until放在句首使用部分倒装，从句不倒装，主句倒装。根据时态应选C。