2.help her sister with her homework
3.visit her grandparents
4.water the flowers
5.wash her clothes
6.cook her lunch
7.play comp.games with her brother
8.watch a video
<span>My room had been cleaned by me by the time my mum came.
My morning exercises had been done by me by 7 o'clock.
Our test had been checked by our teacher before we went out.
His watch had been found by him.</span>
Wash up your face! I have washed it.
Clean your teeth! I have cleaned them.
Water the flowers, please! I have already watered them.
Please, visit your granny! I have visited her
Lock the door! I have already locked it.
Clean the cerpet! I have cleaned it!
Wash the floor! I have washed it.
Count the numbers! I have counted them.
3 а (because)
4 c (вспомогательный глагол)
5 b
Правильно They're = they are