He often __________emails to his parents on weekends.

China is a country with ________resources.— That’s true. But China is also a country with the largest number of people.

I_______ my homework in my study the whole morning . I went nowhere.

It is said that the famous football star is now willing to play for_____ would pay him three million dollars a year.

If it ______ rain tomorrow, I will go to the park. [ ]