1. She has not gone shopping this month. 2. The students have made progress this term so far. 3. The scientists have learned a lot in the last fifty years. 4. I am afraid we have to drink tea this morning. I have forgotten to buy coffee. 5. Mary have not bought a new dress for years. 6. He has lived in the country since his wife died. 7. She has felt very unwell today. 8. They have were happy all their life. 9. My sister has not married yet. 10. The students never have were to London. 11. Our town has changed recently. 12. I have not heard the story before. 13. The clock already has struck. 14. Have you ever seen Stonehenge? 15. He just has left home. 16. They have not seen each other lately. 17. I always have wanted to be a vet. 18. Look! She has fallen off the bike.
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