The striped shore crab is a creature often seen in rocky areas.

He is good at solving multiplication problems.

In math class, I am solving division problems.

He is practicing every day to acquire new skills.

This deal is very beneficial for us.

This deal is greatly beneficial for us.

He managed to pass the exam.

Mr. Koiwai is my best friend.

I am single and live alone.

My father had to move away from his family for work.