Teenage students who are ________computer games usually would not focus on studies .

If you intend to arouse students’ interest in your project, you’d better ______ your teaching methods more wisely.

When the book，Twilight，was first ________，it was immediately well received by readers.

 Before the operation, the doctor ___the nurse to be careful.

 The manager along with his workers _______ day and night to complete the project.