We went to see him off at the airport and soon the plane .
A. was disappeared
B. would have disappeared
C. disappeared
D. was being disappeared
网友回答
A. was disappeared
B. would have disappeared
(答案→)C. disappeared
D. was being disappeared
解析：see sb. off 意为:为某人送行.这是一个并列句,由and连接,两个谓语分别是went和 disappeared.