I learned about the inventions that led to color movies, too. 我还了解了一些发明,它们成就了彩色电影。
该句是一个含有定语从句的复合句,that led to color movies 为定语从句,修饰先行词 inventions。当先行词是事或物时,定语从句的引导词应用 that/which,它们可作从句的主语或宾语。作宾语时,引导词可以省略;作主语时则不能省略。
eg:I have read the book that/which is very popular now. 我已经看过这本当下很流行的书了。(作主语)
I have read the book (that/which) you introduced to me yesterday. 我已经看过你昨天向我介绍的那本书了。(作宾语)

该句是含有定语从句的复合句，“that led to color movies” 为定语从句，修饰先行词 “inventions”，“that” 在从句中作主语，符合当先行词是事或物且引导词在定语从句中作主语时不能省略的语法规则。

1.I prefer music ____ has great lyrics.
A.who
B.whose
C.that
D./

C

2.—Who ____ the computer?
—Sorry, I've no idea. But it has changed the world greatly.
A.invented
B.discovered
C.made
D.played

A