1.How often DO you stay late after work?
2.She IS an exciting girl. I love talking to her.
3.Who IS sitting there in the garden?
4.Nothing IS knowN about that man.
5.Why ARE you crying?
6.I DID not hear you knocking.DID you knock loudly?
7.He IS cooking something delicious.I CAN smell it.
8.What ARE you reading?
9.What DO you ussually read?
10.She IS not listening to you.I can see it in her eyes.