1.
(2017高二上·江苏月考)
It was ________ the exam results were given out ________ a large amount of time on computer games.
A . not until; did the boy begin to regret having wasted
B . until; that the boy didn't begin to regret having wasted
C . not until; that the boy began to regret wasting
D . until; did the boy not begin to regret wasting