Televisions enable us to see things happen almost at the exact moment______.
问题描述：
Televisions enable us to see things happen almost at the exact moment______.
A which they are happening B they are happening C which they happen D they have happened
我觉得应该是过去进行时，电视不是应该看到过去正在发生的吗？
答
B
百度嫌我字数不够给解释下呗~描述一般情况，时态为一般现在时。 A用which引导是错误的，要注意到后面的they are happening与时间状语的连接缺少介词，实际上应当用at which(when)引导，并且可省略。