were和are的用法?
were 和 was 的用法.
was 和were的用法?
was和were的用法
was、were的用法和与is、am、are的区别
as和for的用法As they are great hunters,snowy owls were considere
请讲解一下were/are having ;will have和have的用法,
are /is was were用法
英语:一般过去时was 和 were 的用法
were you 和did you 的用法
有关are/were/did/do疑问句子的用法
关于be动词 am,is,are 的过去式 was 和were 的用法.我已经知道was 和were 是前者的过去式.
are和is的用法