Some animals______well enough in that country.A．have not protectedB．is not being protected

Some well-known scientists believe that there is not enough oxygen on Mars to ______ human

According to Brigid, some children cant do well in school examinations because_____.A．they

Mr. Wells has found some new clues in his investigation, ______ of great importance to sol

If there are more animals in a certain area than______ to support them, some of the animal

Some well-known scientists believe that there is not enough oxygen on Mars to ______ human

— I can get on well with some of my classmates. They just leave me in the cold. — _____ But whats