When first ________ to the market, the computer software . was not a success due to its complexity in operation.
He ought to win the first prize, _____ he?
I missed the last bus, so I _____ go home on foot.
I got up early that morning, but I _____ so because I had no work to do.
You must be a writer, _____?
She’s already two hours late. What ______ to her?