摘要： It was not until 1920 regular radio broadcasts began. A. while B. which C. that D. when 答:C．在强调句型中.被强调的部分是时间状语或地点状语时.后边不能用when或where.须用that．所谓强调句型就是强调句中的某个成分．如:I saw him at the station yesterday． 可以强调句中的主语.宾语.地点状语或时间状语.被强调部分是人时后边可用who或that．如 It was I who saw him at the station yesterday. 强调主浯 It was him that ] saw at the station yesterday. 强调宾语 It was at the station that ] saw him yesterday. 强调地点状语 It was yesterday that I saw him at the station. 强调时间状语
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It was not until 1920 _______ regular radio broadcasts began.
A. while B. which C. that D. when
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It was not until 1920 ________ regular radio broadcasts began.
A. while B. which C. that D. since
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It was not until 1920 ______ regular radio broadcasts began.
A. while B. which C. that D. since
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