-What did you do in today's history class?-We talked about the characters____ achieved fame in American history.
April 22nd is Earth Day. Which of the following activities should be organized on that day?
— Listen! ______ beautiful music Lang Lang is playing! —He is such a wonderful pianist!
—Why are you in such a hurry, Anna? —Because I can’t find my schoolbag _______.
They saw the math teacher ______ the classroom just now.
— How long has Bob ______? — Since 2012.