Fill in the Blanks C12U10 Review 2Online version Complete the sentences. Use the correct preposition. by Modern English 1 for in since in since for 1 . John's been gardening a few hours . 2 . Rose and Yuki haven't shopped online months . 3 . Carmen's been running she was in college . 4 . Lola hasn't made unhealthy food a long time . 5 . Terry and Lou have been skiing this morning . 6 . Rick's been doing the laundry over six hours .