Select the most appropriate meaning of the underlined idiom in the given sentence.
This problem is a hard nut to crack, it will take longer than they imagined.
Answer & explanation
Correct answer: option 3
The most appropriate meaning of the underlined idiom in the given sentence is is difficult to solve. The idiom "hard nut to crack" means a problem that is difficult to solve.
The other options are not as appropriate.
- Needs a lot of work means that something requires a lot of effort or time to complete.
- Is not interesting enough means that something is not stimulating or engaging.
- Involves breaking nuts means that something requires the use of force or violence.