2. Find the mistake in each sentence. Circle the mistake and write the correction.

Пошаговое решение:

• 1. You do not have to wait for us!
• 2. We do not have to wear a school uniform on Friday.
• 3. Adam has to take his exam again in the summer.
• 4. Does she have to phone you?
• 5. When do you often have to do P.E.?
• 6. I'm never tired.
• 7. He has to go early.
• 8. She always argues.
• 9. How many students are in your class?
• 10. Who is your best friend?