---_______ the Internet ___________ in your school?　       ---Yes, but the computer in our office has broken down.　  

——Why are the housing prices in big cities going up all the time? ————One reason is that people are__________ into overcrowded cities in great numbers.

—Oh, let’s go to that restaurant right now for lunch!—______ They serve food 24 hours a day.

–– Let’s fly kites.–– _________.

 --Whose advice do you think I should take?--___________.