DO .IS ...过去式是Did...was...还是Did...is...

问题描述:

DO .IS ...过去式是Did...was...还是Did...is...
DO .IS ...过去式是Did...was...还是Did...is..
举个例,方便理解

这个不一定.根据意思决定.比如:Do you think he is smart?译为你现在认为他聪明吗Did you think he was smart?译为你过去认为他聪明吗正常来说前后时态应该是一致的.但是有特例.如果后面陈述的是客观事实.那么后面...