snacks and drinks, but they also brought cards for entertainment when they had a picnic in the forest.
A. Not only they brought
B. Not only did they bring
C. Not only brought they
D. Not only they did bring
网友回答
A. Not only they brought
(答案→)B. Not only did they bring
C. Not only brought they
D. Not only they did bring
解析：
这题考查倒装句,否定词位于句首时，句子用部分倒装，即把助动词提到主语前面。就像not only放在句首时，句子用倒装，但是要注意的是：but also后面的句子就不用倒装。