题目内容
It was not until 1938 _________ the first colour TV programme was broadcast.
A. which B. that C. when D. on which
【答案】
B
【解析】
试题分析:考查强调句型。从句意可知即使不填选项,句子意思仍然完整,所以判断为强调句型。强调句型的特点是去掉it is ….that 部分,句意完整通顺,所以答案为B。句意:直到1938年第一个彩色电视节目才被播出。
考点:考查强调句型。
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