原帖由 annie66 于 2009-2-4 21:03 发表 ; Y. h; t0 T' F1 b& Z; ^7 } 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 2 O; C2 n1 O) w# X' `/ v
you are wrong, and your friend is also wrong.' \: k( z% j+ S# D9 X! m% R! l, Z# }
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?