1. He never (to fly) by plane . 2. We always (to take) little luggage when we travel. 3. Mary (not to buy) a ticket yet. We can't (to fly) to Yalta.…

1. He has never fllown by plane . 2. We always take little luggage when we travel. 3. Mary hasn't bought a ticket yet. We can't fly to Yalta. 4. I think Vinegar Witch has stolen all mustard seeds in Spice Country. 5. Why is your little sister crying? 6. Have you found all the books in this shop? Did you find all the books in this shop? Do you find all the books in this shop? 7. Do you understand everything? Did you understand everything? Have you understood everything? 8. Who makes coffee? 9. Look! Little Nick is failing down.