Final answer:
The issue with the sentence 'COMPLEMENTARY ADMISSION FOR TEACHERS AND STUDENTS' is that it uses all capital letters and lacks a verb, which prevents it from being a complete sentence. The revised complete sentence would include a verb and use standard capitalization.
Step-by-step explanation:
The sentence 'COMPLEMENTARY ADMISSION FOR TEACHERS AND STUDENTS' has no punctuation or spelling error, and it is not a case of a sentence fragment. However, it uses all capital letters, which is typically not standard in sentence construction.
It is suitable for headings or to highlight specific information, but in standard writing, using all capital letters (known as 'shouting' in digital communication) is often discouraged because it can come across as if the writer is yelling. Additionally, the sentence lacks a verb, which is necessary for it to be a complete sentence with a subject performing an action or being in a state of being.
A complete and correct version of this sentence would be: 'Teachers and students receive complementary admission.' In this revised sentence, 'receive' serves as the verb that clarifies the action happening in the sentence.