______ his return to school, he went directly to his office and began to work. [ ]A. In B. At C. On

题目简介

______ his return to school, he went directly to his office and began to work. [ ]A. In B. At C. On

题目详情

______ his return to school, he went directly to his office and began to work.

[      ]

A. In
B. At
C. On
D. For
题型:单选题难度:中档来源:0110 期中题

答案

C

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