问题
选择题
It's impossible for all the people to get jobs because _______ of them are not fit for them.
A．none of
B．all
C．not all
D．every one
答案
答案：B
"not all... / all...not..."为部分否定，"并非都......"，按照句意为半否定句子，句子已经有了not，故排除A，C,D项意思不符。