He thought this was the first pair of shoes that had fitted him ________.

In the past ten years, the ________mountain climber _________ a lot from his own adventurous _______

 —We want to finish the task ahead of time.—You have to _____________, if so.

    in my life impressed me so deeply as my first visit to the Palace Museum. 

The Southern States wanted to ______ the Union, so the American Civil War ______.