As your spoken english improve,__ your written englishso does thus will so will does so

As your spoken english improve,__ your written englishso does thus will so will does so
As your spoken english improve,__ your written english
so does thus will so will does so

As your spoken english improve,__ your written englishso does thus will so will does so
so will
so+助动词+sb./sth. 也……
条件句中从句一般现在时,主句将来时