If you _____ smoke, please go outside because this is a non-smoking office.

gh the children _______ in age_______ seven to thirteen, they have a lot in common

The NBA semifinal was really wonderfulThe best moment was, as the media reported, _____ LeBron James scored the winning three points

In his lecture, the professor referred to the belief ________ the elderly are wise, ________ is particularly dominant(支配的) in Chinese culture.

He promised to tell me by himself when I ______