Ex3: Change the following sentences into passive voice, using the present perfect.
1. He has never polished his shoes.
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2. My mom has taken care of that sick cat for a year ………………………………………………………………………………………………
3. They have just made a phone call to Paris. ………………………………………………………………………………………………
4. The student hasn’t done his homework yet. ………………………………………………………………………………………………
5. How long has your father bought the house?
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