题目：
--Laura didn’t join in their dancing last night , did she ?
---________________, because she fell off her bike and hurt her legs
A．Yes, she did
B．No, she didn’t
C．Yes, she didn’t .
D．No, she did
答案：
答案：B
B 反意疑问句的回答根据事实，肯定用yes，否定用no。根据句意，她从自行车上摔下来伤到腿了。可知，她没去。排除A/C, D项前后矛盾。故选B。
