3. Now Mrs. Bell is teaching her pupils to read fast.
Is Mrs. Bell teaching her pupils to read fast now?
What is Mrs. Bell doing now?
Who is teaching pupils to read fast now?
Is Mrs. Bell teaching her pupils to read fast or slow now?
Mrs. Bell is teaching her pupils to read fast, isn't she?
4. We often go to the circus.
Do we often go to the circus?
Where do we often go?
Who goes often to the circus?
We often go to the circus or to the theater?
We often go to the circus, don't we?