8. Why______ you_________________ \(look\) so exhausted, Mum? – I_______________________ \( clean\) the house all day long. I________ \(be\) so tired. You__________________ \(help\) me with housework so rarely.

• are / looking / am cleaning / am being / help
• do / look / am cleaning / am / have helped
• are / looking / have been cleaning / am / help