Ex3: Change the following sentences into passive voice, using the present perfect. 1. He has never polished his shoes. ……………………………………………………………………………………………… 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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