题目内容
【题目】It was not until 1920 ______ regular radio broadcast began.
A．While B．which C．that D．since
【答案】C
【解析】句意：直到1920年才开始有定期的无线电广播。本题考查not...until的强调句型结构：It be not until +被强调部分+that...，故选C项
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题目内容
【题目】It was not until 1920 ______ regular radio broadcast began.
A．While B．which C．that D．since
【答案】C
【解析】句意：直到1920年才开始有定期的无线电广播。本题考查not...until的强调句型结构：It be not until +被强调部分+that...，故选C项