用括号内所给词的适当形式填空（每空不限一词）。
Mr Wu advised us __________ in the wetlands.(not shout)
The story will help people  understand the _________of protecting wild animals. (important)
Can you list all the             names? (visit)
She is kind and never ___________ a bad word about anyone(say)
We record their types and ___________ in their numbers.(change)