____ no need for everyone to do the problem again because it has already been solved

问题描述:

____ no need for everyone to do the problem again because it has already been solved
a.It is b.There is
为什么选B?

there be 表示存在状态
如果把句子简化为:(There is )no need to do the problem again.不需要再处理这个问题了.