Present perfect 1. he can`t cal his friend, because (he, to lose, his notebook). 2. my mother can`t wear her dress, because (she, not to finish, it). 3. mr. downey can`t read the newspaper, because (the postman, not, to deliever it). 4. mrs. wolff can`t do anything, because (she, to learn, just, about her son`s illness). 5. she can`t cook dinner, because (she, to cut, her finger). 6. i can`t write to my friend, because (i, to lose, his address).

1 He can't call his friends because he has lost his notebook.
2 My mother can't wear her dress because she hasn't finished it.
3 Mr Downey can't read the newspaper because the postman hasn't delivered it.
4 Mrs Wolff can't do anything, because she has just learnt about her son's illness.
5 She can't cook dinner because she has cut her finger.
6 I can't write to my friends, because I have lost his address.