One day, he suddenly decided to go on a journey.

We often have picnics by the river on weekends.

We have a picnic by the river every weekend.

He is quite a good cook.

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

My keys are inside the house.

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

He continued to write that report all night.

Our project is scheduled to be completed on the eleventh day of the month.

I'm praying for your recovery as early as possible.