When we visited Zhou Zhuang again ten years later, we found it changed so much that we could hardly ________ it.
—Do you know our town at all? — No, this is the first time I ______ here.
Americans eat ___ vegetables per person today as they did in 1910.
How beautiful she sings! I have never heard _______
Watch out! The car you .
By the time he was 14, Mozart many pieces of music for violin, piano and for orchestra.