“You can’t have your football back______you promise not to kick it at the window again!” the old lady said angrily.

--Remember this, boys and girls. _____careful you are,       _____mistakes you will make.---We know, Miss Wang.

 He traveled all over the world ______ he had a man-made leg.

Think before you write, ______ you will get good grades in the exam.

Though it was late, __________ he went on with his work.