1. There is a bird in the tree .Can you see the bird?
2. There are birds in the tree. Can you see the birds?
3. There is a new museum in my town. We visited it last Sunday.
4. By the way, did you go to school at the age of six?
5. I have English five times a week.
6. Mr. Porter's son goes to London twice a year.
7. The Porters go to the United States once a year.
8. Mike and Ted's brother goes to the Hyde Park once a week.
9. Kate's little sister has milk five times a day.
10. Mrs. Green's children go to the Natural History Museum once a month.