We have been collecting stamps for five years.(同义句转换）

We have been collecting stamps for five years.(同义句转换） We have been collecting stamps for five years . 同义句转换：we have been friends for 10 years I have been in Shanghai for five years.同义句转换____ ____ five y they have been collecting stamps for 10 years They have been collecting shells for there years.（改为同义句） Have you been collecting shells for five years?做否定句 He has been a league member for five years.（同义句转换） Mike’s grandfather has been dead for five years （同义句转换） I started collecting stamps five years ago.改同义句 I ____ colle I have been collecting shells for three tear and a half同义句转换 两句同义句转换 His grandfather has been dead for five years.