The use of Chinese by teachers in English classroom must be restricted because it will decrease time when students are exposed to the English language.
A. the; /
B. an; /
C. /; the
D. an; the
网友回答
A. the; /
B. an; /
C. /; the
(答案→)D. an; the
解析：本题考查冠词。句中an English classroom泛指一间英语教室；the time特指“当学生接触英语语言的时候”。故选D。