When a giraffe has ______ drink, it has to stand with its front legs wide apart in order to reach ______ water easily.
There isn’t going to be a volleyball match next week, __________?
You’d better not smoke here, ________?
You must have read about Dickens long ago, __________?
You daren’t say that to him, _________?
Wang said that he was not there then, _____?