С! use the present perfect continuous and for or since for each of the following situations. пример: my friend started reading an interesting book a month ago. he is still reading it. he has been reading the book since last month. c.viktor began writing a letter to his pen-friend in the u.k.last week and he is still writing last week. d.omars father started driving his car when he was 20 and he is still driving he was 20.