Completar frases For and SinceVersión en línea Use For or Since de acuerdo a la oración. por Laura del Mar Agudelo Rendón 1 since since for for for since for since since for 1 . Mr . Johnson has worked this company since 1980 . 2 . Kate hasn't eaten anything six hours . 3 . Peter has read eleven books last weekend . 4 . Jason and Clara have been friends more than 10 years . 5 . I haven't seen my uncle Thomas a long time . 6 . They haven't come together they graduated from the university . 7 . Cindy has driven her car only five months . 8 . We haven't seen Mr . Parker this morning . 9 . David hasn't telephoned he left school at three o'clock . 10 . The singer has sung seven songs the concert began .