It was not until 1920 _____ regular radio broadcasts began.

A. which

B. when

C. that

D. since

参考答案与解析：

相关试题

It was not until 1920 ______ regular radio broadcasts began.

It was not until 1920 ______ regular radio broadcasts began.A. whichB. whenC. th

  • 查看答案

    • Everything ________ before the experiment began.

    [单选题]Everything ________ before the experiment began.A.has been prepared B.was p

  • 查看答案

    • After everyone took _ place, the meeting began.

    After everyone took _ place, the meeting began.A. hisB. theirC. thereD. the

  • 查看答案

    • After everyone took_______ place, the meeting began.

    After everyone took_______ place, the meeting began.A. hisB. theirC. thereD. the

  • 查看答案

    • Not until I began to work ________ how much time I had wasted.

    Not until I began to work ________ how much time I had wasted.A. didn't I realiz

  • 查看答案

    • American women were _____ the right to vote until 1920 after many years of hard struggle.

    American women were _____ the right to vote until 1920 after many years of hard

  • 查看答案

    • If （） are taken at regular intervals, an

    [单选题]If （） are taken at regular intervals, any unequal distribution of load will be easily found out.A . differential of crank-websB . indicator diagramsC . lube oil reading outD . misalignment of crank-throw

  • 查看答案

    • Radio Beijing

    [名词解释] Radio Beijing

  • 查看答案

    • As a result of the radio ______for help

    [单选题]A．s a result of the radio ______for help for the earthquake victims. over a million pounds has been raised.A． appealB． callC． programD． advertisement

  • 查看答案

    • Cox Radio, one of the nation"s largest radio chains, plans to ______ its ties with independent

    Cox Radio, one of the nation"s largest radio chains, plans to ______ its ties wi

  • 查看答案