问题
How much do you know about the 3D film technology?—A little. Not until _____ the hot movie
A:vatar______some about itAdid I see; did I begin to learn
B:egan to learn
C:I saw; did I begin to learn
D:did I see; I began to learn
B:egan to learn
C:I saw; did I begin to learn
D:did I see; I began to learn
正确答案是：
