what is的过去式是什么? what was
that is的过去式是什么? this was
do not的过去式是什么? did not
we are和she is的过去式是什么? we were she was
what is的过去式是什么?that is的过去式是什么?do not的过去式是什么?we are和she is的过去
what is的过去式是什么? what was
that is的过去式是什么? this was
do not的过去式是什么? did not
we are和she is的过去式是什么? we were she was