What plants ... you (water)?
What plants were you watering?
Where ... your brother(clean)?
Where was your brother cleaning?
Who...(do) the ironing?
Who was doing the ironong?
When ... you (mop) the floor?
When were you mopping the floor?
...Mary(wash) the dishes?
Was Mary washing the dishes?
Who ...(feed) a cat?
Who was feeding a cat?
Where... your parents (walk) the dog?
Where were your parents walking the dog?
What ... your dad(cook)?
What was your dad cooking?
... you (take) out the trash?
Were you taking out the trash?
Who ...(sweep) the floor?
Who was sweeping the floor?
Who ... (do) the hoovering?
Who was doing the hoovering?
Who..(do) the gardening?
Who was doing the gardening up?