________ are you training hard for—-To be a volunteer.

I felt______ when I heard the______ news.

He said he would work it out himself, ________ ask nobody for help

He used to _____ games on the Internet, but now he gets used to ______ a walk after supper.

ggest whale is _____ blue whale, which grows tobe about 29 meters long—the height of ____ 9-story building.