Compléter PrepositionsVersion en ligne In this activity, you have to complete the text using the right preposition: "ago", "since" and "for". par NUBIA ANDREA GONZALEZ MOSQUERA 1 since for ago for since for since for ago Ana went to Cambridge three years . She was studying English there six months . It has been a long time I met her , I want to see her again . I met her a long time , but I don't know anything about her . Last time , she told me that she has been working on a translation a few hours and , her dog ate all that she had done , she was crying 3 days . I want to visit my friend but it has been a long time we had a good weather in this town . It has been raining weeks . For that reason , I have been working yesterday in a big project , when I finish it I can take some vacation .