2.You look dirty. What have you been doing?
i've been repairing the bicycle. What have you done? Well, i've already replaced the chain and cleaned the gears, but i haven't checked the tyres, yet.
3.You look exhausted.What have you been doing? I ve been painting the garage. What hace you done? well, i ve already mixed the paint and whitewashed the walls,but i haven t cleaned the brushes
