What do you believe is true even though you cannot prove it?

We are aiming for an integrated development zone that combines business and industrial quarters.

What have you been getting up to till now?!

There was nothing wrong with their ability, it was just that the expense for each unit was so vast that the cost performance was bad.

What on earth spurred them to such an action?

Koga, what on earth happened in your youth?

I got really into it, and I just can't forget the exhilaration of becoming one with the audience.

Where can Yoko have gone?

If he should die tomorrow, what in the world would you do?

If this airplane were to be hijacked, what in the world would you do?

How did she ever pass the test?

I don't know what's got into her.

I wonder where she lives.

Why was it that she got angry?

I really don't understand what's up with her.

Who should write it but himself?

Nobody knows what it is that has been bothering him so much.

How is it that he solved the problem?

Whatever will become of his wife if he does not return?

Can it be true that he is ill?