Kiến thức: Từ vựng

Giải thích:

minor (a): nhỏ, không quan trọng

serious (a): nghiêm trọng

important (a): quan trọng

major (a): chính, chủ yếu

Cấu trúc mở rộng:

minor (a): nhỏ, không quan trọng

- a minor road

- minor injuries

- to undergo minor surgery

- youths imprisoned for minor offences

- There may be some minor changes to the schedule.

- Women played a relatively minor role in the organization.

major (a): chính, chủ yếu

- a major road

- major international companies

- to play a major role in something

- We have encountered major problems.

- There were calls for major changes to the welfare system.

serious (a): nghiêm trọng

- a serious illness/ problem/ offence

- to cause serious injury/ damage

- They pose a serious threat to security.

- The consequences could be serious.

Tạm dịch: Anh may mắn thoát khỏi vụ tai nạn với chấn thương nhẹ.

Chọn A

The doctors hope to the source of the infection which has been a mystery for the medical community