It was not until 1920 ________ regular radio broadcasts began.A、whileB、whichC、

游客2023-09-26 20

问题 It was not until 1920 ________ regular radio broadcasts began.

选项 A、while
B、which
C、that
D、since

答案 C

解析注意词组not…until用于强调句时，往往要写成not until…that。

转载请注明原文地址:https://tihaiku.com/zcyy/3046863.html

相关试题推荐

随机试题

最新回复(0)