know
- You must know why she got angry this morning, ____ ?
- So little ________ about science that the lecture was my understanding.
- Antarctic _____ we know very little is covered with thick ice all the year round.
- As far as I know, this man ____ risk anything than lose the ring for his wife.
- As we all know, many Chinese words have come into English, ______ typhoon, tofu and kung fu.
- As we all know, the advantage _______ is good for students’ self-improvement.
- As we all know，dark glasses can ________ the eyes from strong sunlight.
- As we know, in our Chinese history _____ was a time when industry was only a home business.
- Do you know Australia was, as a matter of fact,________ used to be a nation of prisoners?
- Do you know the man from ________ house the pictures were stolen？