多项选择题
A.IT系统B.TT系统C.TN系统D.IN系统E.NT系统
A.He should understand the general idea first.B.He should slow down reading.C.He should not try to read too slowly.D.He should mark time carefully.
A.She doesn't like Jason.B.She would prefer not to go.C.Jason is always a nice man.D.She would like to go.