John, look at the time. ____ you play the piano at such a late hour?
In no city of China ______ little about the economic development.
I don’t remember how many years ago _____ I was taken to Beijing for the first time.
---Where did you meet him? ---It was in the hotel _________ I was staying.
I found him sitting in his chair,completely____ a magazine.
“How can we go outing in this kind of weather!”! Bob said,________ out of the window.