My boyfriend gave me a gift.

Everyone was surprised by the news.

The signal from the cell phone relay-station in this area is weak.

He likes to take a walk in the park at dusk.

He suffered from external bleeding due to an accident.

He has experience living in a foreign country.

That proposal is completely unthinkable.

We are searching for extraterrestrial life.

Please teach me how to calculate the circumcenter of this triangle.

Sotonami is my best friend.