Đáp án D

D. a Halloween custom for children in many countries.

Câu trong bài: It primarily a fun for childrcn. Children dress up in costumes like people did a thousand years ago. But instead of worrying about evil spirits, they go from house to house. They knock on door and say "trick or treat".

The word "trick or treat" in paragraph 6 is closest in meaning to .................. 

A. cheat and joke

B. worrying about evil spirits

C. a religious holiday in some countries.

D. a Halloween custom for children in many countries.