We all goodbye to my father as he was on the train to Beijing．
A. made
B. shook
C. Paid
D. waved
网友回答
A. made
B. shook
C. Paid
(答案→)D. waved
解析：句意：当我们上了去北京的火车的时候，都挥手向爸爸告别。四个选项的含义分别是：A．made使得，制作，B．shook摇晃，C．Paid付钱，D．waved挥手，词组“wave goodbye to sb.”向某人挥手告别。所以选D。