问题
选择题
The professor gave________series of lectures on________history of art at our university last week. [ ]
A. the; /
B. /; the
C. a; the
D. a; a
答案
答案：C
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The professor gave________series of lectures on________history of art at our university last week. [ ]
A. the; /
B. /; the
C. a; the
D. a; a
答案：C