It’s your life, not. Don’t always depend on me.

Sally, could you go and help your father wash the car?—Why ____________? I’m busy now. Amy is lying on the grass doing nothing.

Someone is knocking at the door. Who may it be? —It ______ be Tom. He is still in the school.

The old man has lived in this city.

Was the class long enough?—–No, _______ enough.