In the sentence, what does get down to business mean?
After getting a severe scolding from his mother, Karim got down to business.
Note
began to work seriously is correct because get down to business means to start working seriously on an important task.
This idiom or phrase is useful because it helps students understand the intended meaning beyond the individual words.
Examples: After the discussion, the team got down to business. Stop joking and get down to business before the deadline.
The idiom does not mean starting a company; it means becoming serious about the task.