(solve as per the direction given above)No sooner didthe chairman begin speakingsome participants startedshouting slogans.No error.

1. Break Down the Problem

We will analyze the given sentence and identify any grammatical errors. The sentence is: "No sooner did the chairman begin speaking some participants started shouting slogans. No error."

2. Relevant Concepts

The structures we need to examine include:

• The use of "No sooner" which should be followed by "than" in a comparative sentence.
• Proper punctuation to separate clauses.

3. Analysis and Detail

1. The phrase "No sooner" typically requires a immediate consequence expressed using "than."
2. The sentence doesn't include "than" which makes the structure incorrect.
3. Additionally, there should be a comma before the second independent clause starting with "some participants," although it can be a stylistic choice in some cases.

4. Verify and Summarize

Correcting the sentence, it should read: "No sooner did the chairman begin speaking than some participants started shouting slogans."

Final Answer

The corrected sentence is: "No sooner did the chairman begin speaking than some participants started shouting slogans."