The number of _____ species increases every year with their natural habitats disappearing.

Many difficulties ______ when Daisy helped endangered species of wildlife.

With ______ help of WWF, many endangered species are now enjoying a peaceful life in ______ wild.

With ______ help of WWF, many endangered species are now enjoying a peaceful life in ______ wild.

A．/; the            B．the; the           C．the; /             D．/; /

 Many difficulties ______ when Daisy helped endangered species of wildlife.

A. risen             B. arose               C. raised             D. rose