Question

It is known to us __________ it was not until 1938 ________ the first colour TV programme began to be broadcast in the world.

1. A.
   that, which
2. B.
   /, /
3. C.
   that, that
4. D.
   which, that

Answer 1

C
试题分析：第一空是that引导的主语从句，第二空是强调句型it is...that...；句意是直到1983年世界上第一个彩色电视节目播出，是众所周知的。
考点：考查语法。
点评：此题较易，主要考查that引导的从句，关键是句子成分分析，一个是主语从句，一个是强调句型。