Sửa lại giúp mình lun nha
VI. Choose the underlined part that needs correcting in each sentence below.
20. My dad has been (A) a(B) stamp collection(C) for more (D) than 20 years.
21. Traditional (A), people in this mountainous (B) area live (C) a nomadic (D) life.
22. How many(A) month is(B) Huong Pagoda Festival held(C) in (D?
23. Books can be used (A) as a tool opening (B)up (C) new worlds for (D) children.
24. Spend (A)time with family can always be (B)the most precious(C)experience (D)to anyone.