根据下面对话中的情景，在每个空白处填入一个适当的语句，使对话恢复完整。
A: Excuse me , ________________________________________________?
B; Sorry , I don’t know .
A: _____________________________________ .(Then A walks to C)
A: Excuse me , could you tell me where the Yinhe cinema is ?
C: Of course . It’s the fifth floor of the Jiangzhou Mansion (大厦) .
A: ____________________________________________?
C: Walk along the street to the first crossing , then you will see a ten-floor building on your left . It’s the Jiangzhou Mansion . You can take the elevator to the fifth floor. And you will find the Yinhe cinema on it.
A: ____________________________________________?
C: About fifteen minutes .
A: _________________ . Good-bye !
C: Bye-bye .