My keys are inside the house.

He is quite a good cook.

I think his Japanese has improved quite a bit, hasn't it?

The Second Sino-Japanese War was a war that lasted from 1937 to 1945.

The technology of artificial rainmaking greatly contributes to agriculture in arid regions.

He continued to write that report all night.

A day without seeing her feels like an eternity of waiting impatiently.

Mr. April First is my best friend.

The strong sense of impatience I feel waiting for his return is painful.

The strong sense of impatience I feel waiting for his return is painful.