Please refer to the previous example.

Every year, many people visit this special festival.

Please refer to this example.

This is an isolated case, different from other cases.

He acted according to my instructions one by one.

I went to see a movie by myself.

The first day of the month is the beginning of a new month.

I have been to France once.

He finished all his work all at once.

He has a competitive spirit that does not allow even one defeat.