.You’ll never guess who I met today—my old teacher! We_____for twenty years.
Cheer up! It won’t be ______ we can meet again.
______ the ancient Egyptians built the pyramids puzzled people for centuries.
The boy as well as the two dogs _____ when the earthquake rocked the city.
—Sorry, the tickets have already been sold out. —Really? Maybe I _______ a little earlier.
From hisvoice on the phone, I know everything is going under way.