In this particular case, we must act with caution.

The CAs are responsible for the financial management of the company.

This problem must be handled on a case-by-case basis.

This theoretical case is often used to illustrate the theory.

The subject case is important in French grammar.

The objective case is important in French grammar.

I have a high opinion of his opinion.

I always have a snack at 10 o'clock in the morning.

In which case you couldn't come, let me know.

In this specific case, the usual rules do not apply.