1. They have  studied  English for three years now.   -> They started ………………………………………………………..   -> It’s …………………………………………………………………  ->They began  ……………………………………………………….    2. Tim has been collecting  stamps since the first of May.    -> Tim began…………………………………………………………..    ->It’s …………………………………………………………………..   3. My grandpa  has worked in the music intrustry since  he was a college student.   ->He ……………………………………………………………………    4. They started working for this company seven months ago.   ->They have ………………………………………………………………   -> It’s ………………………………………………………………………    6. Tom and Mary  have worked in that factory  since 1990.   -> Tom and Mary …………………………………………………………..    7. It started raining an hour ago.    -> It has………………………………………………………………………    -> It is ………………………………………………………………………..     8. We moved to london  in 2003.    -> They have ………………………………………………………………….     9. I have had the motorbike for five years.    -> I bought …………………………………………………………………….    10. I have  studied  English  for three years.    ->I began …………………………………………………………………………