题目内容
He is an old worker. He ________ until he was over sixty.
[ ]
A. didn't begin to work B. stopped working
C. kept on working D. didn't stop to work
答案:C
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题目内容
He is an old worker. He ________ until he was over sixty.
[ ]
A. didn't begin to work B. stopped working
C. kept on working D. didn't stop to work