An advertisement provides information and uses ________ language and exciting images to encourage people to buy a product.

David is      . He is from      .

One of my close friends made great progress in her studies so her teachers ___ her, and I _____ her.

She started laughing loudly when I began to sing，which made me feel very________.

A government official was murdered in his own house yesterday and the police   are collecting evidence that is ______ to the case.