Change the following sentences into passive voice

Exercise 8: Change the following sentences into passive voice
1. They didn't open the bank last weekend.
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2. J. K. Rowling wrote her first book at the age of six.
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3. Why didn't you clean the floor this morning?
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4. Does the teacher explain the lesson thoroughly?
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5. What time can all students hand in their assignments?
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6. The company designs websites for clients.
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