Put the correct form of the verb clean in each gap.
1. I enjoy__ the house every Monday morning . 2. It's Monday lunchtime and I ___ the house already . 3. I think most of the houses in my street __ at least once a week . 4. My mother says my father thinks the house __ by magic . 5. My friends arrived while I __ my room . 6. In the future , houses __ by robots .