Since most Antarctic rocks are dark in color, they stood out _____ the white background and are easy to identify and collect

Han Ming is a helpful boy. He is ready_____________ anything for others.

Sorry, he _____ help his mother.

y tried to stretch the shoes, but still his feet didn’t ___ them.

hanghai World Expo drawingnear, volunteers are making use of every minute to ____ their foreign languagebecause language volunteers must pass a written test and an interview.