一道初三英语单项选择
问题描述：
一道初三英语单项选择
--Your teacher just called .He said you were late for school today.Is that true?
--Yes,it is.I ___ you,but I forget.
答案为“was going to tell"
为什么用过去进行时?
答
be going to = will
这个动作是在说话前用过去时