Knowledge is to one’s mind ______ food is to one’s body

— Did you listen to the report last Friday?— Yes, it was about the shortage of migrant workers. That was the first time I ____ about the subject. [ ]

Better not to ignore the past but learn from it instead. _____, history has a way of repeating itself.

Without sleeves, the scars on his arms were clearly ____________. We all pretended I couldn’t see them.

This picture is very _____ that one. There are only a few differences.