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Open the brackets.
1. My sister (to be) a doctor.
2. His parents (to be) engineers.
3. I (to be) a student.
4. My shoes (to be) very dirty.
5. Her bed (not to be) comfortable.
6. Your book (to be) on your bed.
7. I (not to be) happy today.
8. The shops (to be) open today.
9. Mr. Kelly’s son (to be) eight years old.
10. Mr. Smith’s children (to be) ten years old.