第17题 It was between 1920 and 1930 ___ television was invented in America.

第17题 It was between 1920 and 1930 ___ television was invented in America.
第17题 It was between 1920 and 1930 ___ television was invented in America.

第17题 It was between 1920 and 1930 ___ television was invented in America.
that 强调句型

填that,这是一个强调句

when
由it引导的时间状语从句

It was between 1920 and 1930 ___ television was invented in America.
填that 。是强调句：对时间状语强调
原句是：
Television was invented in America between 1920 and 1930 .
电视机是美国在1920和1930年间发明的。

that
这是一个强调句的典型句型。It is/was + 被强调部分 + that...
当被强调部分是人时，可用who替换that ...
本句强调时间状语，“电视机是【在1920到1930年期间】在美国发明的”