题目内容：

who is in the classroom now Nobody.all the students are on the playground
A SOMEONE
B Anybody
C nobody
D somebody
为什么选择c

优质解答

因为,后一句All the students are on the playground.已经告诉我们,所有的学生都在操场,那当然现在教室里是没有人了,所里选nobody没有人