(2013·西安模拟)The man we followed suddenly stopped and looked as ifwhether he was going in the right direction.
Henry escaped ____ by admitting his mistake.
I first met Lisa three years ago. She _____ at a shop at the time.
He studies the subject _____.
Charles Babbage is generally considered ______ the first computer.
"Can’t you read?" Mary said ______ to the notice.