He thought that he did very well in the exam.改成否定句是否定在thought还是从句中的did?

either is ok^^.解析：许多同学都记得”否定前移”,于是看看见think,suppose,believe等的否定句就都把not提前.这源自于浮躁的学习态度,think等可以否定前移的另一个重要条件是其主句的主语必须是第一人称.如,i don not think you can love me without changes forever.(我可不相信你会爱我一辈子)这时候,not必须提前.但如果不是第一人称,放前放后都可以.