Choose the best option A, B, C or D to indicate the underlined part that needs correction in each of the following questions

(23-28) Choose the best option A, B, C or D to indicate the underlined part that needs correction in each of the following questions. 23. Gary (A) gave me (B) a letter to post. I must (C) to remember (D) to post it. 24. Nam (A) plays (B) the piano (C) better than I (D) am. 25. (A) To bring only (B) essential travel items; (C) don't carry (D) too much. (A) Can you (B) name (C) some famous tourist (D) attraction in Viet Nam? 26. 27. How (A) much years can Brain, a (B) kind of coral (C) in the Great Barrier Reef of Australia (D) live? 28. Mount Everest (A) is (B) highest (C) mountain (D) in the w