________ seems to be a strong competition in China for senior high students to enter college or university.
The thief _____ the papers all over the room while he was searching.
Today, housework has been made much easier by electrical _____.
The _____ of the trees in the water was very clear.
One _____ needed when making a cake is flour; another is sugar.
They have been waiting for many hours to see the singer, but the airplane must have been _____.