问题
选择题
____ the students came into the classroom, they began to study attentively. [ ]
A. Hardly
B. The moment
C. Unless
D. At the moment
答案
答案：B
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____ the students came into the classroom, they began to study attentively. [ ]
A. Hardly
B. The moment
C. Unless
D. At the moment
答案：B