Language Functions and Communication
Language Functions and Communication (Domain 8) tests whether you can do something with English - request, suggest, apologise, invite, complain, persuade, agree or disagree - appropriately for the situation and the listener. The correct answer is judged on function and register, not on grammatical ambition.
Functions and their typical exponents
Requesting: “Could you possibly…?” / “I wonder if you could…”. Suggesting: “Why don’t we…?” / “How about…?”. Apologising: “I’m terribly sorry - I should have…”. Inviting: “Would you like to…?”. Complaining: “I’m afraid I have a problem with…”. Giving an opinion: “As far as I’m concerned…”. Disagreeing politely: “I see your point, but…”.
Register and tone
Match the exponent to the distance between speakers. To a friend, “Give me a hand with this” works; to a principal, “Could you spare a moment?” does. Politeness in English is carried by past forms (“I was wondering”), modals and hedges (“a bit”, “perhaps”), not by honorifics. In dialogue-completion items, keep the speaker’s tense and follow the cue word: if the prompt says “suggest”, produce a suggestion, not a command.
Worked example
Prompt: Your neighbour plays loud music late at night. Complain politely. Weak: “Stop playing loud music at night.” Reasoning: this is a command, so it fails both the complaint function and the politeness requirement. Strong: “I’m sorry to trouble you, but the music last night carried into my flat until quite late. Would it be possible to keep the volume down after eleven?” Name the problem, give a concrete detail, request specifically, and soften with “Would it be possible”.
Traps
Answering the content of the question rather than performing the function; using imperatives for requests; mixing formal and informal markers in one turn; and ignoring the situation - complaining to a friend needs less formality than complaining to a landlord.