It sounds like something is wrong with the car’s engine. ___ we’d better take it to the garage immediately.
He usually goes to work by bike _______ it rains.
She knew nothing about his journey _______ he was likely to be away for three months.
---- “How did the robber get in?” ----“______ an open window on the first floor.”
_______ reading the letter, what has he done?
_____ their inexperience, they’ve done a good job.