It is thought that one billion people I the world,  _   is half the word’s workers, earn their living by farming.
#94954
A
if
B
that
C
which
D
what
推荐题目
 _______he was laid off last year ______ how serious the economic crisis was.
#93917
A
Not until…he realized
B
It was not until… when he realized
C
It is not until…that did he realize
D
It was not until …that he realized
_______homework did we have to do that we had no time to play basketball.
#92060
A
So little
B
Too much
C
Too little
D
So much