the best way to study english well is to speak english ( )often ( ) ( )怎么填

the best way to study english well is to speak english ( )often ( ) ( )怎么填
the best way to study english well is to speak english ( )often ( ) ( )怎么填

the best way to study english well is to speak english ( )often ( ) ( )怎么填
the best way to study english well is to speak english ( is) often ( practising) (it )

(as) often (as possible)