I thought she was interesting
I thought she is interesting
两个都对,但它们的含义不同.
“I thought she was interesting”我认为她以前很可爱.
“I thought she is interesting”我认为她很可爱.
两句中不同于“was”和“is”,“was”是“is”的过去式,表示以前,而“is”是表示现在.