that31052k1
2/21/2024 2:01:22 PM
Question 17: They are conducting a wide of surveys throughout Vietnam.
A. collection B. range C. selection D. group
Question 18: The polluted atmosphere in some industrial regions is called “smog”.
A. much B. largely C. fully D. heavily
Question 19. Police are warning the public to be on the for suspicious packages.
A. care B. alert C. guard D. alarm
