题目内容
【题目】He had some trouble, but he kept on_______________ and didn’t give up.
A. work B. worked C. to work D. working
【答案】D
【解析】句意：他遇到了一些麻烦，但他没有放弃，继续工作。keep on doing sth.继续做某事。故答案为D。
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题目内容
【题目】He had some trouble, but he kept on_______________ and didn’t give up.
A. work B. worked C. to work D. working
【答案】D
【解析】句意：他遇到了一些麻烦，但他没有放弃，继续工作。keep on doing sth.继续做某事。故答案为D。