The correct answer is C. After two such nights, he must be so tired as to be able to sleep anywhere.
Explanation:
The sentence "After two such nights must be so tired as to be able to sleep anywhere" is a fragment because this sentence contains a predicate "must be so tired..." but does not contain a subject, which is an essential element in a complete sentence. In this context, to correct this sentence and make it a complete sentence it is necessary to add a subject such as "he". This correction is shown by option C that specifies who is the agent of the action.
Yesterday, my friends went to the cite (replace with city) of a world-famous puppy park with their dogs. Theyre (Their) dogs' tails were wagging so quickly they looked like helicopters! It was adorable. Once they were their (there), the dogs got to run around and play while the people talked about there (their) favorite animals. Yesterday was a lot of fun for dog lovers.
Most of these errors are the wrong uses of "there" "they're" and "their". Their is possessive, there is pointing to where it is happening, and they're is "they are" describing what they are doing. When it is discussing multiple possessions, add a ' at the end. Found this helpful? Give it a Brainiest Award if so.