the expression___, please, without any change.

chezhan Middle School.

In ancient times, dogs weremainly ______helping people hunt( 打猎) .Now they are more useful-they can help theblinds, search for the bad eggs,…

The same information ______ read or______on the website.

He is not a hard-working boy. But ______ intelligence, he is much better than anyone else in the whole class.