The old man showed us how to _____ part of the surface of the wood and let a pattern in.

Not until midnight_____back from work, drunken .

I failed to catch the early bus becauseI overslept this morning—You_________have stayed up too late lastnight

It is obvious to the students __________they should get well prepared for their future.[ ]

If I ____ a bird, I would fly in the sky. [ ]