Giải giúp mình với ạ cảm ơn mọi người

`28.` D

`-` Cả bài đếu nói vè cách nhắn tin xưa và nay

`29.` A

`-` Dẫn chứng: Writing letters was a process that took time and patience, but it was deeply appreciated because of the personal touch it offered.

`30.` B

`-` integral (adj) `=` necessary (adj): cần thiết

`31.` D

`-` Dẫn chứng: Some people still enjoy writing letters by hand. They think that handwritten letters are special because they show the writer’s feelings.

`32.` C

`-` Dẫn chứng: However, some traditions haven’t changed completely. Some people still enjoy writing letters by hand. They think that handwritten letters are special because they show the writer’s feelings, making the communication more personal and sincere.