The realization and use of speech acts vary across different settings, languages, and cultures. The pragmalinguistic and socio-pragmatic aspects of language underline both the linguistic forms and the socio-logical features language users opt for and perceive, under a variety of contextual variables and individual differences, to elicit pertinent speech. This paper is articulated around a socio-pragmatic investigation into Algerian EFL students' appropriacy of speech act realization. To carry out the assigned objective, a Multiple Choice Discourse Completion Task (MDCT) was developed. The participants were 100 third year Algerian students at the university of M'sila, and 13 British native speakers of English.