Eva : hi andi
andi : hello eva
eva : what are you doing?
andi : oh.. i'm cleanning the rubbish around the school
eva : really? it's good...may i help you?
andi : of course, with the greatest pleasure
eva : btw, why you must clean this area?
andi : because i like if this school is clean so we can enjoy while learn everyday
eva : wow ... you're so care about that
andi : sure .. let's go