When we use language either spoken or written, our fundamental aim is to deliver some sort of message to other people whom we are talking to. The messages may be in the acts of offering, stating, giving command, and giving question. These kinds of message have four roles in our communication to the addressee. According to Gerot and Wignell (1994:23), these four roles are giving goods and services in their offer, telling information in their statement, asking goods and services in their command, and demanding information in their question.

Ika Purnama Sari is an eager beaver dreamer who loves learning something new and takes everything as new ones. Degree in Linguistics in English Department, Faculty of Humanities, Diponegoro University.