Bob ____a cold. And Mary and Sue ____colds ,too . They shouldn’t exercise.A.has; has B has; have C.have ; has
—David has made great progress recently. —_____, and _____.
Now most families have only one child _____ our country’s one-child policy.
—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.