+0
1: foolish/ tell lies/ police
A. He was too foolish not to tell lies to the police.
B. He was so foolish that he tells lies to the police.
C. He was very foolish so that he told the police lies.
D. He was so foolish as to tell lies to the police.

2: fail/ obey/ regulations/ disqualification
A. If you fail obeying the regulations, you’ll get disqualification.
B. Failure to obey the regulations may result in disqualification.
C. In case you fail obeying the regulations, you’ll have disqualification.
D. Failing to obey the regulations may lead to get disqualification.
I choose B,D for 1,2 respectively. But the correction is D,B. I don't understand. Please explain it to me. Thanks!
+1
Tiểu CầmI choose B,D for 1,2 respectively.
B is wrong because the verb tenses clash.
D is wrong because 'get disqualification' does not collocate.
Comments  
Site Hint: Check out our list of pronunciation videos.
Could you please tell me the meaning of the structure so+adj+as to ? I don't understand
so+adj+as to = sufficiently adj to; adj enough to.

He was so foolish as to tell lies to the police. = He was foolish enough to tell lies to the police