At end of the meeting our headmaster encouraged all of us to go to college.A. the; theB

问题补充：

At end of the meeting, our headmaster encouraged all of us to go to college.

A. the; the

B. an; /

C. /; /

D. the; /

答案：

A. the; the

B. an; /

C. /; /

(答案→)D. the; /

解析：

这题考查冠词的用法：第一空填the，at the end of：在…结束时，第二空不填，go to college“上大学”，选D。