There is a _________ of 1000 dollars for the return

---Mum, I’m going to visit my aunt. What about a week? ---A week is too long. Try to be back in ____of days.

In China, the education is divided into three _______: basic education, higher education and adult education.

The window of our room can give us a good view of the street, in which case we witnessed the accident as if we were at the _____.

Tom is into sports.When young ,he had a _____about becoming a famous football player.