Three-fourths of the surface of the earth ______ covered with water.
举一反三
- 中国大学MOOC: 26. Three fourths of the surface of the earth ___ covered with water.
- Three-fourths of the surface of the earth ______ covered with water.
- Three-fourths of the surface of the earth ______ covered with water.
- Three fourths of the surface of the earth__________with water. A: is covered B: are covered
- About_____________ of the earth's surface is covered with water. A: three-fours B: three-fourth C: three-fourths