问题补充：
Dr. Green, as well as his wife and children, visit Beijing this winter.
A. was going to
B. were going to
C. is going to
D. are going to
答案：
A. was going to
B. were going to
(答案→)C. is going to
D. are going to
解析： 考查主谓一致。as well as连接两个主语时，谓语动词取决于前者，所以用单数形式，根据时间状语this winter，可知表示的是将来，故选C。
