Verified answer

The pages in this old book are turned yellow.

The old picture is tarnished.

ㄏㄏ!!老師..這提難了..

別想太多, 用yellow (v) 就行了.

例: The leaves of the book were/had yellowed with age.

yellow既可當名詞，亦可當動詞

yellow (v) to make or become yellow 變黃

eg. The paper had yellowed with age.(那紙由於年久變黃了。)

另外講yellowish(adj 微黃的，帶黃色的)也可以，前面加be動詞