123. At present nanotechnology(纳米技术), a kind of tip science_________to the common people. Few people know him.
| A．unknowing | B．unknown | C．known | D．Untrue |
It was only in 1997 J. K. Rowling completed the first Harry Potter story, _______ was also known as Harry Potter and the Sorcerer’s Stone.
| A．that; that | B．that; which | C．when; that | D．when; which |
I haven’t got ____ nails to mend the cupboard. I need another three.
| A．enough big | B．big enough | C．much bigger | D．many enough |
The food was good, _______ he had little appetite (食欲).
| A．so | B．otherwise | C．however | D．but |
After the military parade(阅兵) at the Tian’anmen Square, the soldiers and the equipment returned _____ they belong.
| A．the place | B．where | C．there | D．what |
Confucius Constitute is a worldwide non-profit （非营利的）organization, _____ the Chinese government set up to popularize（推广）the teaching of Chinese and spread the Chinese culture.
| A．that | B．it | C．one | D．ones |