Pls solve this one for me

6 Meera has written a dialogue between two friends. But she has used the wrong modals. Find the incorrect modals and replace them with the correct ones in each line.

                                                                                                                                     Incorrect                 Correct
(a) Vrehaan   Where's Anshul? He can have been here half an hour ago.                 ..................            ..................
(b) Vicky        He should have got lost. He is still new to this town.                             ..................            ..................
(c) Vrehaan   He can have forgotten all about the plan, I suppose.                            ..................            ..................
(d) Vicky        He may not have forgotten. We were talking about it this morning.      ..................            ..................
(e) Vrehaan  Well, something can have delayed him.                                                ..................            ..................