问题
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
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
正确答案是：
