2.______ of the earth surface is covered by water.
A: thirty percent
B: forty percent
C: fifty percent
D: seventy percent
A: thirty percent
B: forty percent
C: fifty percent
D: seventy percent
举一反三
- More than seventy percent of the water on the earth is sea water.
- About seventy percent of the surface of our planet ( ) covered by water. A: are B: is C: were D: was
- Seventy-five percent of the surface of the earth （） by water. A: are covered B: is covered C: have been covered D: was covered
- Seventy-five percent of the earth’s surface ______ with water.
- _______ from space, the earth, with water _______seventy percent of its surface, looks like a blue ball. A: Seen, covering B: Seeing, covering C: Seeing, covered