—Could you tell Lucy about the news when you see her?—Sure, I will ________ I see her. 

He could have finished it on schedule, but ________ he fell behind.

By the time the fire-fighters arrived, the fire had been put＿＿＿by the teachers and the students. 

 Our journey was slow because the bus stopped at different villages________．

 Mr. Green ______ goes to the park for a walk with some friends after supper.