1. 用方框中所给词的适当形式填空

decay    need    vet    affect     expand

1. （1） Saving the planet everyone's effort.
3. （2） A is someone who is qualified to treat sick or injured animals.
5. （3） We have to the size of the image.
7. （4） The bodies buried in the fine ash slowly .
9. （5） More than seven million people have been by drought.