The response covers all five stages with a clear overview and largely correct sequencing. However, the heating sentence places cooling within the heater, although the diagram shows a separate cooling pipe. Evaporation is named in the Stage 2 heading but not in the response, and the carbonation tank is left unnamed.
8.0The report progresses logically through the stages with well-managed cohesive devices such as 'In the first stage', 'Once carbonated', and 'Finally', giving a smooth and clear message throughout.
8.0Vocabulary is flexible and precise for a process description, using terms like 'purification', 'undergoes heating', and 'culminating in', with only 'infused to' as a minor collocational slip.
8.0GRAGrammatical Range and Accuracy
A varied range of structures is used with strong control, including passive constructions, relative clauses and participial phrases. The reduced time clause 'Once carbonated' also contributes to concise sequencing; grammatical errors rarely impede understanding.
8.0