本帖最后由 cats 于 2010-1-5 16:57 编辑 / {% Q/ F; i$ F2 S" o, X6 K4 m
1.academic listening and speaking skills focus 2 $15 & z6 r: _; r! [0 t) e3 w( A2.advanced reading power $15 $ e. G1 k9 M) v# P' Y U! l" E3.focus on grammar4 third edition level 3 $20 ( b* O* ?; Y1 @/ Z& _3 q. D N