Put thw verbs in the present perfct simple or continuous, orthe past simple. 1.how you ) at this school? 2.how ) this book? 3.which ) before this one? 4.how long ) your teacher?

1) How long did you study at this school?
2) How long have you been using this book?
3) Which book have you red before this one
4) How long have you known your teacher?