应有效使用语言实验室
【内容提示】
下面是《英文21世纪报》第Ⅳ版一个称为“Teacher's Page”栏目的前言部分。假定你是该版的编辑，请你为它写一段50个词左右的“编者按”（Editor's note）。
Language Laboratories Should Be Used Effectively
The chief drawback (缺陷) of oral interview tests (口试) is the time which is needed. Each student must be tested individually (个别地), and even a short test which takes only five or 10 minutes becomes very time-consuming (费时的) when given separately to 30 students.
The use of a language makes it possible to give oral tes
