单项选择题
This question is so difficult that （）people are able even to understand it.
A．a few B．little C．few
单项选择题 It seems you want to go abroad （）your sister does.
单项选择题 Once he has made up his mind to do something, it is impossible to stop him （）it.
单项选择题 It's midnight, but there's a light （）in the library.
