The line graph below shows the projected percentage of residents aged 65 or above in three Vietnamese localities from 2020 to 2070. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

Collocations

Examiner Notes

• TR“Overall, the percentage of older people is expected to rise in all three places over the fifty years, and Can Tho is expected to always have the highest percentage.” — Covers the main projected trend and identifies the leading locality, meeting the basic overview requirement, but leaves out the crossover between Hanoi and Ho Chi Minh City that the detail paragraphs go on to describe.
• LR“but both are also expected to grow a lot” — Functional but repetitive vocabulary ("grow a lot" echoes "rise"/"increase" used earlier) instead of varied verbs for growth.
• CC“This shows that the order of the two cities changes over time, even though Can Tho always stays highest.” — A simple concluding sentence links back to the overview using "even though", but the paragraph as a whole depends on basic connectors ("but", "and") rather than more precise cohesive devices.
• GRA“Ho Chi Minh City grows faster than Hanoi at first, but later Hanoi's percentage increases more quickly and becomes higher than Ho Chi Minh City's by the end of the period.” — A grammatically correct compound sentence joined with "but... and", accurate but structurally simpler than the subordinate clauses used at higher bands.

Collocations

Examiner Notes

• TR“Overall, the elderly population is projected to increase in all three localities over the fifty-year period, with Can Tho forecast to remain the highest throughout while Hanoi and Ho Chi Minh City follow lower, closely matched trajectories.” — A well-formed overview that also hints at the coming crossover by flagging the two smaller cities as "closely matched", functioning similarly to the 7.5 answer's dedicated crossover sentence but folded into one clause instead of stated outright.
• LR“Hanoi's growth then accelerates” — A precise, dynamic verb choice for describing a change in growth rate, though the answer does not reach for the more interpretive noun phrase ("long-standing outflow of young workers") that the 7.5 answer uses to explain Can Tho's lead.
• GRA“though both are forecast to expand substantially over the period, reaching 27% and 25% by 2070” — A concessive "though" clause combined with a participial phrase packs two pieces of information into one sentence, showing reasonable grammatical range, though less complex than the 7.5 answer's combination of connector plus two parallel participial phrases.
• CC“Interestingly, the two smaller localities do not grow at the same pace throughout.” — This topic sentence pivots the report from the general pattern to the specific crossover, playing the same cohesive role as the 7.5 answer's equivalent sentence but with a simpler discourse marker ("Interestingly" rather than a structured "While... their trajectories cross").

Collocations

Examiner Notes

• TR“Overall, a marked rise in the elderly population is forecast for all three Vietnamese localities over the fifty-year period.” — A concise overview sentence stating the dominant projected trend before any figures are introduced.
• LR“a pattern linked to its long-standing outflow of young workers to bigger cities” — A sophisticated noun phrase ("long-standing outflow") is used to interpret the data rather than merely describe it, extending the overview naturally.
• GRA“however, Hanoi's pace of increase soon outstrips its southern counterpart, climbing from 18% in 2050 to 27% in 2070 and overtaking Ho Chi Minh City at around 2057” — A long sentence combining a contrastive connector, present-tense narrative description, and two parallel participial phrases shows wide grammatical range.
• CC“While both remaining localities show consistent growth, their trajectories cross partway through the period.” — This sentence cohesively pivots the paragraph from the general pattern to the specific crossover event described next.
• TR“Ho Chi Minh City's growth is comparatively gradual in the final two decades, rising by only 6 points, from 19% to 25%, over the same twenty-year span” — Accurately isolates and quantifies a sub-trend (slower growth in the final decades) that supports the overview's crossover claim.