Some books are interesting______(read),but boring_____(learn)用被动语态怎么做?并帮我翻译下,

问题描述:

Some books are interesting______(read),but boring_____(learn)用被动语态怎么做?
并帮我翻译下,

to read ,to learn .有些书读起来很有趣,但有些却很枯燥。

to be read
to be learnt

Some books are interesting___read___(read),but boring__learnt___(learn)