Two Questions

Even when said as one thought with NO pause and NO change of the timbre of the voice, this construction takes two question marks.   …Were your car windows open? Do you remember? …Was your radio on? Do you know?   Reversing the subject and verb in English is the indication that there is a question. These are questions — …

“Do you know?” and Others

When a question like “Do you know?” or “Do you recall?” is tacked on at the end of another question, use an interrog for both questions. …How close were you to the edge of the road? Do you know? …What time was it that he arrived? Do you remember? …Where was he stationed? Do you recall? Happy punctuating! Margie