问题
选择题
As the mid-term examination was drawing near,the teachers were busy___________the test papers. [ ]
A. preparing
B. preparing for
C. to prepare
D. to prepare for
答案
答案：A
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As the mid-term examination was drawing near,the teachers were busy___________the test papers. [ ]
A. preparing
B. preparing for
C. to prepare
D. to prepare for
答案：A
