回复 crystal87
haha...i am really happy u "was/were"(confuse) taught me a lot of knowledge...ni ...
Allen77 发表于 2011-10-2 02:50 PM 
was 和 were 是 is ,am 和 are 的过去式
单数用 was,I,he,she
复数用were,you(特别),they,we,them
I was a boy. 我曾经是个男孩。(事实)
I were a boy. 如果我是男孩。(用在不可能发生的事)
i am really happy u "was/were"(confuse) taught me a lot of knowledge
可以直接用 you taught me,you have taught me,you had taught me。
所以用 was/were,或 is/are 都不适合。