问题补充：
1.His mother had talked to him for many minutes while he was watching TV,but
答案：
B.little did he hear 因为这是否定的语气
2. D.Never before have we seen each other 不选A 因为before不是否定词 故 不应该倒装
3.A.now comes your turn 这是完全倒装 为了使句子 紧凑
4.C.Up into the blue sky flew the bird 表示方位的 状语置前 句子要完全倒装
如here comes the bus
