问题

I first met Lisa three years ago. She ________ at a radio shop at the time.
A:worked
B:was working
C:has worked
D:has been working
B:was working
C:has worked
D:has been working
正确答案是:
同类题型
Not until he called the secretary three times ______ that the manager went to an important meeting.
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You may go fishing if your work _______.
It is well known to all that water, ______ enough, can change into ice quickly.
I was very to see our teacher at the party because he was ill.