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：考查倒装句：not only…but also…，不但…而且…,连接两个句子时，not only放在句首的时候，后面的句子要部分倒装，助动词提到主语前面，but also后面的句子不用倒装，句意：他们不但买了零食和饮料，而且他们买了牌可以在野餐的时候来娱乐。选B。