Look at the girl in the red skirt. ______is my new classmate.
—Can you write the number eighty-five thousand, six hundred and twenty-six?—Yes, it is _____.
This is the most beautiful park I have _____ visited.
Xi’an is a city with many places of interest and _____ tourists come here every year.
—_____ you _____ your homework yet?—Yes, I _____ it ten minutes ago.
It’s necessary for you _____ exercise every day.