It was not until 1920 ______ regular radio broadcast began.A、thatB、whileC、whic

游客2025-07-31 26

问题 It was not until 1920 ______ regular radio broadcast began.

选项 A、that
B、while
C、which
D、since

答案 A

解析强调句型:it is．．．that．．．

转载请注明原文地址:https://tihaiku.com/zcyy/4183863.html

相关试题推荐

随机试题

最新回复(0)