He is working hard to figure out the mystery.

He made a clear and definite statement about his position on the issue.

He stated his opinion clearly.

The lighting in this room is very bright.

He traveled a long distance to meet that famous author.

He built a good reputation in that industry.

We signed this petition with a joint signature.

We can decide our own fate.

This country is a member of the International League.

Wisdom is a guide to overcome the difficulties of life.