The factory used 65 percent of the raw materials, the rest of which _____ saved for other purposes.
—— Where ________? —— I got stuck in the heavy traffic, or I_____here earlier.
I lost your address, otherwise I____you long before.
Very loud noise_____make people ill or drive them mad.
_____he come, the problem would be settled.
Without your help, I ____the exam last term.