原帖由 annie66 于 2009-2-4 21:03 发表 / W Q- h6 }4 u1 `* s! w* i( P" J$ G I'm sure you haven't had Class 7 yet. If you read learner's book, you will know the answer.
原帖由 Lois 于 2009-2-4 22:39 发表 * S$ \9 N* Z; f' g" o5 i0 J
you are wrong, and your friend is also wrong./ ~0 F/ j+ l% l) s% m" K
it has always been 1 year.