Correct Answer:
D. None of these
When changing direct speech with 'Let me' into indirect speech, especially when it expresses a request or suggestion, the structure typically involves 'asked/requested to let' or 'suggested that someone should be allowed to'.
- A. Diana asked me to let she do her work. This is incorrect because 'she' is a subject pronoun; it should be the object pronoun 'her' after 'let'.
- B. Diana ordered me to let him do his work. This is incorrect for two reasons: 'ordered' might be too strong for a simple 'let me', and 'him' is incorrect as the original speaker is Diana (female).
- C. Diana proposed me to let done her work. This is grammatically incorrect. 'Proposed me' is awkward, and 'let done' is not a valid construction; it should be 'let her do'.
- D. None of these: This is the correct option because all the provided alternatives contain grammatical errors or misinterpretations of the original statement. The correct indirect speech would be: 'Diana asked me to let her do her work.'