his arrival at the classroom on his first day at school, the teacher . [ ]A. At;
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![his arrival at the classroom on his first day at school, the teacher . [ ]A. At;](/pic/43_1441073.jpg)
______his arrival at the classroom on his first day at school, the teacher _______. [ ]A. At; was played a trick on
B. On; played a trick at his students
C. To; played a trick on his students
D. On; was played a trick on
试题答案
D