中国大学MOOC: 26. Three fourths of the surface of the earth ___ covered with water.
举一反三
- Approximately (three - fourths) of (the earth's) surface (are) covered (with) water. A: three-fourths B: the earth’s C: are D: with
- Three fourths of the surface of the earth__________with water. A: is covered B: are covered
- ____ of the land ____ covered with water. A: Three fourth; is B: Three fourth; are C: Three fourths; is D: Three fourths; are
- Three-fourths of the surface of the earth ______ covered with water.
- Three-fourths of the surface of the earth ______ covered with water.