在过去式文章里要形容某事简单用it was 还是it is
it is time that 句型中跟过去式,当动词是be动词时,过去式用was还是were?
it is ...since it was...before 一定是过去式吗?
强调句型 it is 还是it was?
强调句式 It is 还是It was?
It is my dream to do sth的过去式怎么说?要把is变成was吗?
it is time 过去式
the first time i saw it was three year ago要过去式还是过去完成时为什么?
it was found that 后面的跟的动词用原型还是过去式
shorts形容时用they are还是it is
"发现某事很难"是"find it difficult to do" 还是"find it is difficult t
it is time for是不是 用过去式
She said it's good for you.中的it's是it is 还是it was,