To be, present simple, can, used to, present continous, past simple

To be, present simple, can, used to, present continous, past simple
To be, present simple, can, used to, present continous, past simple
To be, present simple, can, used to, present continous, past simple
To be, present simple, can, used to, present continous, past simple

Author's Instructions

complete the exercises with the correct answers