Howlonghaveyou____?
You____thatlettertoJames.However，youdidn't.
Theoldmanlivesinavillage_______,butheneverfeels________.
Thefirststepinthestudyofanylanguageisobservingand____preciselywhathappenswhennativespeakersspeakit.
Modern（）perhapscausesmoreproblemsthanitsolves.
