这个椅子很舒服。

Zhège yǐzi hěn shūfu.

This chair is very comfortable.

孩子们在院子里高兴地玩游戏。

Háizimen zài yuànzi lǐ gāoxìng de wán yóuxì.

The children are happily playing games in the yard.

孩子在家看书。

Háizi zài jiā kànshū.

The child is at home reading.