It is one o'clock in the afternoon. You see your neighbor Mr. Yamada.

You come to class in the morning and greet your friends.

On a crowded train, you stepped on someone's foot.

You dropped your book. Someone picked it up for you

It is eight o'clock at night. You happen to meet your teacher at the convenience store.

You are watching TV with your host family and its time to go to sleep.

You are leaving home

You have come back home

You are going to start eating

You have just finished eating