Question

Why is he coming here? Do you know this?

• A. Do you know this why he is coming here?
• B. Do you know why he is coming here?
• C. Do you know why was he coming here?
• D. Do you know why he was coming here?

Hint:

When converting a question into a noun clause, change the interrogative word order to statement word order.

Answer 1

The Correct Option is B

Step 1: Understanding the task.
The question asks to combine the two sentences into a single sentence using correct grammatical structure. The second sentence “Do you know this?” should introduce the information contained in the first sentence.
Step 2: Use of a noun clause.
The sentence “Why is he coming here?” should be converted into a noun clause. When a question is converted into a noun clause, the structure changes from interrogative order to statement order.

Step 3: Correct word order.
Instead of writing “why is he coming”, the correct order becomes “why he is coming”. The sentence therefore becomes:
Do you know why he is coming here?
Step 4: Checking the options.

• (A) Incorrect because the word “this” is unnecessary.
• (B) Correct because it uses proper noun clause structure.
• (C) Incorrect because of incorrect word order.
• (D) Incorrect because it unnecessarily changes the tense.

Step 5: Conclusion.
Thus the correct combined sentence is: Do you know why he is coming here?
Final Answer: Do you know why he is coming here?