________ 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
B解析考查倒装句。not only…but also连接两个并列分句，not only放在句首，第一个分句倒装，并且时态保持一致。