原帖由 annie66 于 2009-2-4 21:03 发表 , Q% d' G6 |) d. a4 y0 S) [ 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 ' v3 `3 g& q7 f4 l( G/ d
you are wrong, and your friend is also wrong./ m; w, z( n8 @1 z( @3 f( m
it has always been 1 year.
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I read the learner's book 5 years ago, which said one year holding time of class 7 to class 5. Did you take the exam 6 years ago?