During the summer vocation we went back to the school to pay a visit to our teachers thou

问题补充：

During the summer vocation we went back to the school to pay a visit to our teachers though it was hot.

A. especially; in particular

B. specially; especially

C. special; especial

D. particularly; specially

答案：

A. especially; in particular

(答案→)B. specially; especially

C. special; especial

D. particularly; specially

解析：前后空需要副词修饰，排除C；依据意思前空表示目的性，后空表示尤其特别意思。