Dr. Smith together with his wife and daughters visit Beijing this summer.A. is going t

问题补充：

Dr. Smith, together with his wife and daughters, visit Beijing this summer.

A. is going to

B. are going to

C. was going to

D. were going to

答案：

(答案→)A. is going to

B. are going to

C. was going to

D. were going to

解析：考察主谓一致。本题的主语是由together连接的两个名词，谓语动词与前面的一个名词保持一致。句意：史密斯先生和他的妻子女儿今年夏天要去北京。而且今年夏天又是一个一般将来时的时间状语，故A正确。