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 .

 

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