摘要： Mike is a student at a famous university, for a doctor degree. A. studied B. studying C. to have studied D. to be studying
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Mike is a student at a famous university, _______ for a doctor degree.
A. studied B. studying C. to have studied D. to be studying
查看习题详情和答案>>Mike is a student at a famous university, _______ for a doctor degree.
A. studied B. studying C. to have studied D. to be studying
查看习题详情和答案>>Mike is a student at a famous university, _______ for a doctor degree.
|
A．studied |
B．studying |
C．to have studied |
D．to be studying |
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