He looked at those jewels one after another ______and seemed to show no interest in any one of them.
_____ as the most excellent student in her university, as most classmates had expected, made her parents very happy.
At no time does the salesgirl get up late in the morning, for she is always too busy _____ a good rest.
It was _____ computer games that cost the boy a lot of time that he ought to have spent on his lessons.
_____ he’s only been learning English for a year, he speaks it very well.
--- I hear Warren _____ in a middle school. --- What? I can’t imagine him _____ as a teacher.