I will love you forever.

Until when will you stay in Japan?

Since when did you start studying Japanese?

He will help at any time.

Education about sex is very important.

We went to see a volcano during the summer vacation.

Katsukazan is one of the most famous active volcanoes in Japan.

It is said that an extinct volcano will no longer erupt.

We are planning to visit the volcanic island during summer vacation.

She likes to decorate her room with flowers.