问题
选择题
To be engineer is my dream. I'm going to study very .[ ]
A. an, hard
B. a, hard
C. an, hardly
D. a, hardly
答案
答案：A
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To be engineer is my dream. I'm going to study very .[ ]
A. an, hard
B. a, hard
C. an, hardly
D. a, hardly
答案：A