原帖由 annie66 于 2009-2-4 21:03 发表 ( g, }. l- a1 ]( u/ @. Q- e I'm sure you haven't had Class 7 yet. If you read learner's book, you will know the answer.
y) k2 ]1 N; K. t0 p, TI 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?