______ his body and soul to bringing up-to-date technology and International attention to China's Aids problem, Dr David Ho, born in Taiwan, spent little time with his family.
Brian told you that there wasn’t anyone in the room at that time, ___________?
I don’t think he could have done such a stupid thing last night, ___________?
There used to be a church in our school, ___________?
Whether we’ll hold the sports meeting depends on the weather, ___________?
If you don’t study hard, you’ll regret, ___________ you?