---The best time Wuxi is in spring.---Yes I think so. A. visitsB. to visitC. visitD. visi

问题补充：

---The best time Wuxi is in spring.

---Yes, I think so.

A. visits

B. to visit

C. visit

D. visiting

答案：

A. visits

(答案→)B. to visit

C. visit

D. visiting

解析：句意：--参观无锡的最好的时间是在春天。当名词有最高级修饰的时候，其后应该用动词不定式作后置定语，in spring在春天。故选B。