1.
a) He is studying for an exam.
b) He are studying for an exam.

2.
a) They are talkking.s
b) They are talking.

3.
a) She is no running.
b) She is not running.

4.
a) Are you listening?
b) Is you listening?

5.
a) They are swimming.
b) They are swiming.

6.
a) The women is working.
b) The women are working.

7.
a) Sleeping is the dog?
b) Is the dog sleeping?

8.
a) Where is she working?
b) Is where she working?

9.
a) The people is singing.
b) The people are singing.

10.
a) Why are you not helping?
b) Why are you no helping?