"Can you help me for a minute?" - "I'm sorry, ...

1.   ?    I am working."
2.   ?    I work."

... on Saturdays.

1.   ?    Are you working on Saturdays?
2.   ?    Do you work on Saturdays?

"Have you got a light?" - "Sorry, ...

1.   ?    I'm not smokig."
2.   ?    I don't smoke."

How many languages ... ?

1.   ?    How many languages are you speaking?
2.   ?    How many languages do you speak?

Why ... a sweater? It isn't cold!

1.   ?    Why are you wearing a sweater?
2.   ?    Why do you wear a sweater?

My father ... August in Ireland.

1.   ?    My father is always spending August in Ireland.
2.   ?    My father always spends August in Ireland.

Robert ... football most weekends.

1.   ?    Robert is playing football most weekends.
2.   ?    Robert plays football most weekends.

"Where's Lucy?" - "She ... ."

1.   ?    "She is shopping."
2.   ?    "She shops."

"What ... ?" - "Chocolate!"

1.   ?    "What are you eating?"
2.   ?    "What do you eat?"

" ... English?" - "Yes, a bit."

1.   ?    "Do you speak English?"
2.   ?    "Are you speaking English?"

The children ... with Granny this week.

1.   ?    The children are staying with Granny this week.
2.   ?    The children stay with Granny this week.

"Is John in the bathroom?" - "No, he is outside. ... "

1.   ?    He is cleaning the car."
2.   ?    He cleans the car."