1. now.
a - plays.
b - is plays.

2. some chocolate now.
a - eats.
b - is eating.

3. rita and karl pizza for lunch.
a - are having.
b - have.

4. tony and homework now.
a - do.
b - are doing.

5. adam tv in the evening.
a - is watching.
b - watches.

6. jeff is outside. fotball.
a - plays.
b - is playing.