Ask as many questions as you can to the following sentences. а. they are discussing this question now b. his sisters work at a new factory c. he was in moscow last winter d. my friend wrote to me very often

1) They are discussing this question now?
What they are discussing now?
When they are this question?
They are discussing this question now or yesterday?
They are discussing this question now, aren't they?
2) His sisters work at a new factory?
Where work his sisters?
His sisters work at a new or old factory?
Did his sisters work at a new factory?
His sisters work at a new factory, didn't his?