Drivers are warned___________when they are tired.

—________that China has the largest number of iphone4s users now.

— I believe so.

The government of Yancheng is building_________cheap and good houses for the people.

You had better__________because you have to drive back home.

Could you tell me                    ?

After _________deeply, he jumped into the river to save the drowning child.

The meeting _________ by the time I got there yesterday.

—You look sad, Kate.  

—Yeah, I have made __________mistakes in my report.

—Mind your steps, guy! Don’t you see the words “_______ the grass”?

—I’m sorry.

—I will take an important test tomorrow.      

—Oh, really? ___________!