The whole morning Jack______on the model plane that he will show in the science class the next day.

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问题 The whole morning Jack______on the model plane that he will show in the science class the next day.

选项 A、has worked
B、is working
C、will work
D、has been working

答案D

解析
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本试题收录于: 英语题库普高专升本分类
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