31. Unless you work harder you will fail, means ……
Option “D” is correct.
Unless you work harder you will fail, means if you do not put more efforts, then you will fail.
32. His behaviour is so unpredictable that he ……
Option “B” is correct.
His behaviour is so unpredictable that he is seldom trusted by others.
33. The officer who had neglected to files his income tax returns had to ……
Option “B” is correct.
The officer who had neglected to files his income tax returns had to pay a fine.
