“No student,” the headteacher stressed, “_______ go out of the school after ten o’clock at night without my permission.”

 -- Must I return the book by the end of next month?--    . You can keep it as long as you like.

The weather turned out to be fine yesterday. I ________the trouble to carry my umbrella with me. 

--- Whose comic book is it?  --- It ________ be Daniel’s. He often shares his comic books with his friends.

 ----You needn’t take an umbrella. It isn’t going to rain.----Well, I don’t know. It_____do.