Put thw verbs in the Present Perfct Simple or Continuous, orthe Past Simple.
1.How long_____ you ____(study) at this school?
2.How long_____you_____(use) this book?
3.Which book_____you_____(have) before this one?
4.How long _______you_____(know) your teacher?
Answers & Comments
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?