He said nothing.

What is this, that box?

Please choose anything you want.

If you don't mind, you can use my car.

Above all, grammar is the most important in learning Japanese.

We need personnel who can handle any problem.

He solved a large number of problems.

Understanding numbers is important for solving math problems.

He was bedridden with illness for several days.

I can't solve this problem because there are too many numbers.