题目：
—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
答案：
答案：C
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。
