Yesterday, I bought a new book.

Yesterday, I bought a new book.

Last night, I went to see a movie with my friends.

He is my best friend.

I gave her a present.

I gave her a birthday present.

I gave him a Christmas present.

We often have picnics in the forest on weekends.

Mori is my best friend.

In this chemical reaction, one mole of hydrogen and one mole of oxygen combine to form water.