----- Nội dung dịch tự động từ ảnh ----- Exercise 5: Read the article in Exercise 4 again and match the highlighted words in the article to their meanings. 1. protect Chọn... 2. comments | Chọn.. 3. collection 4. essential a. things that you say or write that express your opinion. b. a group of things or people c. very important and necessary d. keep someone or something safe from something dangerous or bad. O