Television did not become very common ____the early 1960s.

Television did not become very common ____the early 1960s.
A、unless
B、up to
C、onto
D、until
【正确答案】：D
【题目解析】：考察not until 直到……才……；句意：直到20世纪60年代初，电视才变得很普遍。