______dowegoforpicnicsACertainlyBSeldomCSometime

______ do we go for picnics.

A. Certainly

B. Seldom

C. Sometimes

D. Once

正确答案：B
本题考查倒装句的用法当否定词位于句前时句子应用倒装句式只有seldom(很少)表否定意故选B