awyer started his career at Stanford University, _____ he became Professor of Physics in 2002.

On the sofa_______ a little boy, _______ to his father that he had_______ the dictionary on thebookshelf.

It is really important for parents to reach a ______ between what they want and what their kids desire.

Guess what! We’ll have a chance to visit our sister school in Denmark this summer!—How nice! You ________ a different culture then.

If you like, you can take ____.