Advice:
- Underline the key idea in the question.
- Find the part of the passage which deals with the key idea and read it carefully.
- Choose the opinion which matches the information in the passage.
Example: Read the passage carefully and choose the correct option: A, B, C, or D.

Instructions:

- Read the question, but not the options.
- Underline the key idea in the question (his aim) (and guess the meaning if you don’t know).
- Locate where the question is answered in the passage and read that part carefully.
(lines 7 – 12: Carrier’s invention made it possible to control temperature and humidity levels and so align the colours. The invention also allowed industries such as film process food, textiles and pharmaceuticals to improve the quality of their products.)
- Look at the options afterwards and choose the correct answer.
Answer: D. solve problems in a factory

Van Thi Hai Yen
Teacher of English at The Asian International School