6. The cat must be sick. He HAS NOT EATEN any food for two days. We'd better call the vet. 7. Our teacher HAS GIVEN us a lot of tests and quizzes since the beginning of the term. 8. We put a little money in our savings account every month. We want to buy a car, but we HAVE NOT SAVED enough money yet. We'll have enough in a few more months. 9. HAVE you ever SLEPT outdoors for the entire night? I mean without a tent, with nothing between you and stars. 10. My aunt puts on a wig whenever she goes out, but I HAVE never WORN a wig in my life. 11. Paul's health HAS IMPROVED a lot since he started eating the right kinds of food, exercising regularly, and handling the stress in his life. He's never felt better. 12. I can't find my keys. I HAVE LOOKED everywhere — in all my pockets, in my briefcase, in my desk. They're gone.
6:20 - twenty past six
7:30 - half past seven
9:55 - five to ten (без пяти минут десять)
11:45 - quarter to twelve
12:05 - five past twelve