清代三大木板年画产地是（）、（）、（）。
参考答案：天津杨柳青；苏州桃花坞；山东潍县杨家埠bù
— Mr White has been working all the morning with no rest.
— He is a(n) ________ man. He never looks tired.
A．energetic
B．powerful
C．lovely
D．attractive
