Why haven't you finished your homework yet? You___________ to have finished it by last Sunday.
The police have ____ power to deal with such matters by ____ law.
That she hadn’t kept her ____ on her work resulted in the failure.
The little girl couldn’t work the problem out. She wasn’t ____ clever.
Listen! His family must be quarrelling, ____?
The engineers made two big plans for the dam, ____ was never put in force.