考研英语 句子分析The unions insist that the answer to this problem i

肯定有问题啊,我觉得正确的形式应该是
The unions insist that the answer to this problem is to increase the basic pay of all teachers.
工会坚持认为解决这个问题的方案应该是增加教师们的基础收入.
你用的不是盗版书吧.
increare就不是个单词..