Is that the reason ________he explained to all at the meeting for his carelessness in his work?  Actually we think he is a man who is hard ________ himself especially in work. 

 ---Michael was late for Mr. Smith’s oral class this morning.---_____? As far as I know, he never came late to class.

—Alice, you are going shopping this afternoon, aren't you? Anything special in your mind?—Nothing       ________. I just haven't done shopping for a long time.

Liu Qian, a magician from Taiwan, ______audience of thousands on the CCTV Spring Festival Show.    

As this is his first time to Beijing,he is　　where to go for a visit.