Fill the gap with the most appropriate option from the list following the gap.
One ..... be too careful these days; times are uncertain and walls have ears?
A
can't
B
shoudn't
C
need not
D
dares not
Verified Correct Answer: A.
Grammar & Contextual Explanation
The complete sentence would be: “One can’t be too careful these days; times are uncertain and walls have ears.” This idiom emphasises the importance of caution and vigilance and suggests that it’s better to err on the side of being overly careful rather than taking unnecessary risks.
Source: Myschool Past Questions Archive (Record #10557)