Sae acted coldly.

Ken-go is my best friend.

Wu was an ancient country in China.

The afternoon classes are more difficult than the morning classes.

We reached an agreement on that issue.

He can speak American English fluently.

Our company was able to succeed in a big project by federating with other small companies.

People from all over the country gathered to celebrate the emperor's birth.

We need to combine our forces to make this project successful.

That plan is based on rational thinking.