his body and soul to bringing up-to-date technology and international attention to China’s AIDS problem, Dr. Pavid Ho, born in Taiwan, spent little time with his family.
---It’s a lovely day, isn’t it?---Yes. I love _____ when the weather is like this. Why don’t we sit outside and have our lunch?
In which play is _____ your brother appear?
It must be he that has stolen Mr. Smith’s purse, _____?
Playing football and watching TV _____ both interesting.
---Is anything _____?---I can’t decide which dress I should wear at my friend’s wedding party.---I don’t think it ____.