Đề bài
Đọc kỹ, gạch chân từ khoá trước khi viếtThe line graph below shows the percentage of workers who were members of trade unions in four countries (Country A, Country B, Country C and Country D) from 1990 to 2020.
Summarise the information by selecting and reporting the main features, and make comparisons where relevant.
Write at least 150 words.
